Technical Information Bulletin
Rev. BB 3-10-11
How to Tune a Q-Jet (basic) by Lars Grimsrud Grimsrud ©2011 Lars Grimsrud. This article may not be published or distributed without the written permission of the author
This tech paper will discuss basic set-up and tuning of Quadraet carbs for optimum street performance and dri!ability. dri!ability. The procedure outlined here differs from other " ha!e seen# and is based on my years of e$perience doing this wor% in the &uic%est# least painful# most economical economical way. "t is recogni'ed that other people will ha!e different different methods of doing things# and may disagree with specific methods and procedures that " use. This article is not intended as an all-inclusi!e article about the Q-et design and setup ( there are se!eral se!eral e$cellent in-depth publications publications on the mar%et mar%et that deal with with the design design and modification modification of these carbs. carbs. )ather# this article is intended as a general guide and o!er!iew for the no!ice enthusiast to assist in setting up a Q-et in a logical and understandable manner. The latest revisions to this article include information on choke setup, checking for wide-open throttle operation, and an explanation of the secondary operating system. The carb listing has been expanded and corrected. corrected. More information has been added regarding carb identification, types, and sizes.
Overview The )ochester Quadraet# in its !arious forms and configurations# has been used by !arious G* +i!isions for !arious applications since the mid si$ties. The last passenger car !ersion of the carb appeared as an ,*-controlled ,*-controlled carb in 1/1 1/0 alifornia Q-ets were also ,*-controlled. The Q-et is a highly !ersatile# tunable carb that will pro!ide outstanding performance and reliability once set up correctly. correctly. This paper will discuss the tuning and setup# and will pro!ide you with ade&uate data to ma%e good decisions when etting and adusting the carb. This paper will not discuss basic rebuilding se&uences# nor will " discuss operations in!ol!ing machining operations and other se!ere alterations to the the carb. There are many boo%s on the mar%et mar%et that deal with these these subects in depth. )ather# " will describe the !arious !arious systems# their purpose# and a good tuning se&uence to help you get each system and parameter set up correctly in the easiest way possible. 3efore e!er touching the carb# %eep my saying in mind that# 405 of all carb problems are ignition problems.6 problems.6 7lthough this may be a slight stretch# it8s it8s not far from the truth9 The carb seems to get blamed for any tuning : dri!ability issue that cannot be otherwise otherwise identified. "gnition timing# timing timing cur!e# and !acuum ad!ance operation has a huge effect on the carb8s operation9 operation9 Timing Timing affects carb# but carb does not affect timing. ;o always always set up your timing cur!e before doing any carb tuning. ;ee my papers on 4
nits and ;pecs6 for a complete rundown on this. Quadraet carbs ha!e three basic tuning !ariables# !ariables# and these get people all confused9 ?rimary *etering *etering et# ?rimary *etering )od# and ;econdary *etering )od. 7ttempting 7ttempting to cure problems by tuning the wrong !ariable results in lots of frustrations frustrations for tuners and car owners.
These systems at times o!erlap in their operation. operation. @ot only does each system need to be properly tuned# but its timing and 4o!erlap6 with other systems is critical to proper performance. Ahen tuning# we thin% of each of these !ariables as controlling a different different operating range9 The primary et si'e determines determines the fuel mi$ture at Aide Bpen Throttle Throttle ABT. The primary metering rod determines fuel mi$ture at cruise speed and determines responsi!eness of the idle mi$ture screws screws and off-idle performance. performance. The secondary rods are a high-rpm compliment to the primary primary side# and are used for final 4twea%ing6 of ABT mi$ture. Bn a Q-et# we see that we can control the fuel mi$ture throughout the operating range. range. This is different different from a
Identification Q-ets are identified by a number stamped into the Cloat 3owl casting on the dri!er8s side of the car ust abo!e the secondary throttle lin%age. "f the carb is a arter manufactured under license from )ochester# )ochester# the number will will often be inside a round metal foil tag on the dri!er8s side of the carb ust abo!e the primary throttle lin%age. Bther times# the arter-built arter-built carbs ha!e the number stamped in the same location as the )ochester carbs# less the 4E06 prefi$ i.e. a 4E0H12DE6 carb will be stamped as 4H12DE6 only.
)ochester Quadraet Quadraet "dentification "dentification ,$ample9
E0 H1 2 D E Rocheste Rocheste r I.D. 7ll )ochester products p roducts identified by a 4E06 or 41E0.6 E0 used pre-1ED. 1E0 used 1ED up.
ear !ode" ! ode" 1F 1D0 1 1D1 20 1D2 2 1D 2H 1DH 2F 1DF 2D 1DD 2E 1DE 2/ 1D/ 2 1D H0 10E0 H1 1E1 H2 1E2 H 1E HH 1EH HF 1EF FD 1ED FE 1EE F/ 1E/ F 1E /0 1/0 /1 1/1
0 series for 7.".). engines only 9 D E /
1DD 1DE 1D/ 1D
E#issions9 2 H-;t at e F alifornia :
Division 9 0 he! 1 he! 2 he! ad H 3uic% F Blds D ?ont E ?ont
Trans#ission9 ,!en 7ut o Bdd * an anual
Desi$nation There were distinct 4*odel-;eries6 4*odel-;eries6 of Q-ets built o!er the years. Ahen finding a suitable replacement carb for your car# it8s important to be aware of these changes and to %now the year brea%s9 The 4+i!orced ho%e6 carbs were designated 4H*=.6 4H*=.6 This carb series was produced from 1DF through 1EH on passenger cars the design continued for years on hea!y duty truc%s. These carbs use a bi-metallic cho%e coil mounted to the inta%e manifold# using manifold crosso!er heat to actuate the cho%e using a rod between the coil and the carb8s cho%e le!er. le!er. The 4"ntegral ho%e6 carbs were designated designated 4*H*.6 These carbs were first used on passenger cars in 1EF. The carb# completely completely redesigned from the pre!ious H*=# H*=# uses a hot air cho%e coil mounted in a housing located on the passenger side of the carb. The coil recei!es hot air form a heat e$changer located in the manifold e$haust crosso!er through a metal tube. This hot-air cho%e carb model was designated 4*H*.6 "n 1/0# this was changed to an electrically heated cho%e coil# which can be installed in any *H* carb an e$act reproduction of this electric cho%e coil is offered by ,delbroc%. The electric electric cho%e carbs were designated 4*H*,.6 Cirst to use the *H*, carb was adillac in 1EF. ;tarting in 1/0 in alifornia# alifornia# and 1/1 Cederal# G* used an ,* 4computer6 in its passenger cars. The Q-et was changed to allow electronic control of the primary power piston by the ,*. These carbs are %nown as the 4,H*,.6 They use an electric cho%e identical to the *H*,. These carbs cannot be used without an ,*# and an ,*-e&uipped car cannot use any other carb without setting ,* error codes.
%i&e Q-ets were built in two si'es9 EF0 cfm and /00 cfm. *any of the Q-ets were further limited in their actual flow rating using mechanical stops on the secondary air!al!e shafts or on the secondary throttle lin%age to pre!ent full opening of the secondaries# but any of these carbs can be corrected to flow the full rated capacity. capacity. are should be ta%en when doing this to assure that the modification does not produce any binding of lin%age pieces. pieces. The high-flow carbs use secondary air!al!es air!al!es that rotate through an /0-degree arc. Lower flow carbs ha!e a stop which limits rotation anywhere from D0 to /0 degrees. *ost carbs can be set up to produce an opening arc of up to /F degrees# but should not be set to open any further than to the point where the the lower edge of the air!la!e points points directly at at the top edge of the secondary air air baffle plate. plate. Bn most secondary air!al!e shafts with arc limit# limit# the stop tab on the shaft can simply be filed down to increase the arc tra!el of the shaft. 7gain# be sure you do not induce lin%age binding binding with the the additional tra!el# tra!el# and do not modify to produce produce 4o!er-rotation.6 4o!er-rotation.6 7ll pre-1E1 Q-ets are EF0 cfm. "n 1E1# ?ontiac introduced an /00-cfm carb for use on the HFF <.B. )am 7ir engines. This was a uni&ue design# used only in 1E1# and and only by ?ontiac. "t can be identified by loo%ing loo%ing at the !enturi booster !enturies9 !enturies9 7 4normal6 Q-et has a booster ring also %nown as the 4"ntermediate )ing6 that surrounds the center discharge tube and !enturi. The /00 cfm 1E1 ?ontiac has no "ntermediate "ntermediate )ing9 Bnly the center discharge !enturi stic%s stic%s out into the main !enturi9 it loo%s li%e 4it8s missing missing something6 in the !enturi. 3uic% also had an /00-cfm Q-et in 1E1# used on their HFFs from 1E1 through 1EH. 3uic% too% a different approach9 "nstead of eliminating the "ntermediate "ntermediate )ing# 3uic% enlarged the outer bore si'e of the primary !enturi# ma%ing the outside walls almost straight with no real 4!enturi shape.6 The problem with doing this is that there are internal passages in one area of the !enturi wall# so to ma%e the walls larger and straight# 3uic% had to put a 4bulge6 in each of the outside walls. This ma%es it !ery easy to tell that you8re loo%ing at an /00-cfm carb9 ust loo% for the bulge. bulge. "f loo%ing at the carb from the the front fuel inlet towards towards you# the bulge in the dri!er8s dri!er8s side primary !enturi !enturi is in the 2-o8cloc% 2-o8cloc% position. position. The one on the passenger side side is in the 10-o8cloc% 10-o8cloc% position. position. "n 1E and 1EH# ?ontiac used this 3uic% design /00 cfm carb on their HFF ;uper +uty engines. These are the only /00 cfm di!orced cho%e carbs built. "n 1EF# the passenger car Q-ets changed to the *H* design. 7ll ?ontiac *H* carbs are /00 cfm. 3uic%IBldsIadillac also made common use of the /00 cfm design. design. "t is !ery rare to see a he!y /00 carb carb ( it was seldom used.
'eterin$ rea ABT fuel mi$ture is controlled controlled only by the main et si'e. ?erformance at cruise and at idle is then controlled by the rods. Ae can establish each of these mi$tures independently of the other by %nowing and understanding the concept of *etering 7rea. 7rea. et and rod si'es are always referred to by their diameter in thousands of an inch. 3ut fuel flow doesn8t 4see 4see66 diameters9 The fuel 4sees6 the total metering area. area. ;o we must con!ert the diameter diameter into a resulting resulting area. Ae remember that the formula for area is πr 2. Thus a et with a diameter of .0E06 has a metering area of9 )adius J K diameter )adius J .0F6 .0F2 J .00/H6
π
Thus# the metering area of a E0 et is ./H thousands of a s&uare inch. 3ut waitM There is a rod inserted into the et# so we must subtract the area of area of the rod. Let8s Let8s say we ha!e a H0 rod in that that E0 et. The area of the rod is9 )adius J K diameter )adius J .0206 .0202 J .0012F6
π
Thus# the area that a H0 rod 4plugs off6 is 1.2F thousands of a s&uare inch. The resulting metering metering area of the E0IH0 combination is thus ./H minus 1.2F. The total metering metering area is 2.F thousands of a s&uare inch. This is the metering metering area of this rodIet rodIet combination with the the rod fully inserted in the et. et. "n other words# this this is the metering area at cruise speed and at idle. NOTE9 This assumes that the rod8s 4fat6 part is fully inserted into the et at cruise. 7lthough this is not actually true on most Q-ets# we will use this assumption assumption for comparati!e etting purposes. purposes. ;ee the section on ?ower ?iston ;etup for a full e$planation of this. To see the metering area at ABT# we %now that all rods ha!e a .02D6 diameter power tip e$cept as noted with the 4*6 series rods. ;o we run the same calculation for a .02D6 diameter rod inserted in the et. "t is these numbers that we will use in all comparisons when ma%ing et changes. changes. Ae will use these numbers also to loo% at the percent percent differences differences in et changes. ;o that you won8t need to run around with a calculator# my arb Listing in Table Table 1 shows the metering areas for e!ery carb listing at both cruise and at ABT assuming rods with .02D6 diameter diameter power tips. tips. The number is is the metering metering area in thousands thousands of an inch for for a single etIrod in the carb. This number is effecti!ely effecti!ely how richIlean the carb is really etted# and you can directly compare these numbers to see how the !arious carbs were set up by the factory. 3y di!iding one area into another area# you can see the percentage difference difference in the etting. Cigure 2 is a table showing you what the metering area is for e!ery possible etIrod combination. combination. ,ach grouping of ets starts off with the rod power tip diameter of .02D6 so you can see the ABT metering area of that et si'e. "t then umps to the first usable rod si'e.
Tech Ti *+ 3efore you go trying to fi$ all the errors of the pre!ious carb tuner# set your carb up to the stoc% spec for your carb part number. 7 carb etted and set up to its stoc% specs will usually run pretty good on ust about any application# and this gi!es you a good starting point. Crom there# you can start doing doing refinements refinements as outlined in this paper. paper.
The carb number on a Q-et is usually stamped into the bowl casting on the dri!er8s side of the carb in the area abo!e the secondary throttle shaft. The number starts with either either 4E0N6 or 41E0N6. "f the carb is a Q-et manufactured under license by arter# arter# it will sometimes ha!e the carb number stamped into a foil circle on the dri!er8s side of the bowl ust abo!e the primary throttle shaft# but the )ochester 4E06 designator will often be deleted. 7 E02/20E E02/20E carb manufactured by arter will often be stamped 42/20E.6 The carb listing Cigure 1 is a partial listing listing of popular Q-ets that " ha!e compiled o!er the years. "t is not a complete listing of e!ery Q-et carb. *ost notably# notably# " ha!e !ery few of the truc% carbs listed# yet there are many truc% carbs running around on passenger cars. " also ha!e not started compiling all the adillac# Blds and 3uic% applications in this chart# but " do update it at irregular inter!als. Cor the latest !ersion with latest updates# drop me an e-mail on occasion to ma%e sure you ha!e the latest chart.
Tech Ti *, Ahat has a greater effect effect on performance9 performance9 primary or secondary ettingO ettingO " constantly see people people swapping around secondary rods# rods# trying to get the best performance out of their cars. The secondary rods are !ery easy to change# and since the secondaries are so 3"G# the secondary metering has to be the most important# rightO
Arong. *ost Q-ets are about EF0 cfm carbs. This is more airflow than most small small bloc% engines can e!er handle. Pet# G* used Q-ets Q-ets on e!erything from B!erhead am D-cylinder D-cylind er ?ontiacs and 3uic% =-D8s# =-D8s# to F00 cube addys.
Tech Ti *
Cirst# %eep in mind what " always teach at my Tuning ;eminars ;eminars and what " ha!e obser!ed o!er the past 0 years of setting up performance cars9 cars9 405 of all carb carb problems are are ignition problems.6 problems.6 3efore you you e!er try tuning the carb to eliminate eliminate dri!ability dri!ability problems# set set up your timing and ad!ance cur!e in accordance with with my 4sing a hammer# hammer# gently gently tap the roll pin in towards towards the cho%e air horn wall. +on8t am am the pin right right up against the wall9 Lea!e ust a little bit of a gap so you can get a screwdri!er blade in between the wall and the pin to pry it bac% again. Aith the pin tapped out# remo!e remo!e the accelerator pump le!er. " li%e to do this with the engine running so " won8t ha!e any trouble starting the engine without the accelerator accelerator pump. @ow# re! the engine a little with the throttle. @otice if the engine seems &uic%er and more responsi!e# or if the hesitation : stumble stumble is worse. "f the engine actually feels more responsi!e with the accelerator accelerator pump disconnected# you you ha!e a rich condition. "f the hesitation is worse worse than before# you you ha!e a lean condition. "f there is no change whatsoe!er# whatsoe!er# you ha!e a non-functional accelerator accelerator pump. To !erify !erify a suspected lean condition after this test# simply hold your cupped hand lightly o!er the cho%e air horn area with the engine running at idle# restricting restricting the air flow. "f the idle speed and idle &uality momentarily increases# increases# you ha!e a !erified lean condition. Pou Pou need to richen your idle mi$ture andIor select a etIrod comb ination that will gi!e you a little more ruise *etering 7rea. *a%e these changes in less than 105 increments using the Cigures pro!ided in this paper.
Tech Ti *
To test for this# pop the top off the carb# remo!e the power pistonIrod assembly# and remo!e the power piston spring from its bore. )e-install the rodIpiston rodIpiston assembly without the spring and put the carb bac% together. together. The carb will now run in the full-lean condition all the time# and you can actually test dri!e it in this condition. Pou can also test for this condition !ery &uic%ly &uic%ly although you cannot actually dri!e the car by inserting a long pin punch or a small long screwdri!er down through the !ent tube9 7ngle the pin punch slight forward# and you will hit the top of the power piston. Pou can now depress the power piston andIor !erify if it is pulled down into its fully seated position. 3e !ery careful careful when doing this so you do not am the punch or screwdri!er through your float. "f this clears up the idle# impro!es idle mi$ture screw response# and eliminates the blac% smo%e when you flic% the throttle# you need to install a softer spring. ,delbroc% has a complete power piston spring assortment a!ailable. Pou Pou can also get many of the springs from G*?arts+irect G*?arts+irect using the G* part number shown in the carb listing chart.
Tech Ti */
"f you ha!e a few springs of !arious %inds laying around# it is not readily apparent which spring is stiffer stiffer than another. Pou can arrange them and order them from softest to stiffest stiffest as follows9 >sing your carb# or a un% float bowl from another carb# as a testbed# remo!e the carb air horn the 4top6 of the carb and remo!e the power piston and and its spring. spring. )emo!e the primary primary metering metering rods from the piston. @ow# drop a spring into into the power piston piston bore and install the piston. Cind a ?hillips screwdri!er# screwdri!er# and place the handle of the screwdri!er on top of the power piston with the shan% of the screwdri!er pointing straight straight up. >se a screwdri!er that is light enough to @BT compress compress the power piston and its spring# but close. @ow# drop flat washers washers onto the shan% shan% of the screwdri!er screwdri!er and %eep stac%ing stac%ing them up until until the piston piston compresses the spring and seats in the bore. ount the number of washers washers it too% to compress the spring spring and label the spring as a 4D-washer 4D-washer spring#6 for ins instance. tance. +o the same with the other springs you want to test. Pou8ll Pou8ll end up with a comparati!e rating of springs# li%e 4H-was her#6 4D-washer#6 or 410-washer6 springs. Pou now %now e$actly how to arrange them from softest to stiffest. 3ut which one should you useO Pou8ll need need a un% Q-et float bowl for this test# and you8ll need to ha!e your engine in running condition. >sing a stripped down# bare Q-et float bowl# you8ll notice that there is a hole in the bottom of the bowl right underneath the power piston bore. This is the the !acuum hole that that applies manifold manifold !acuum to the power piston. piston.
The idle mi$ture screws in the throttle plate recei!e their fuel through the main metering ets and through the "C) tubes. 7lthough the etIrod is not not the most restricti!e restricti!e part part of the system# system# the si'ing has has an effect effect on fuel flow to to the "C)# "C)# thus altering a!ailable idle mi$ture range. Thus# a change in the main metering circuit ets andIor andIor rods will affect the idle circuit. The idle mi$ture screws cannot meter meter more fuel than the "C) will allow with the pressure drop caused by the main etsIrods. There are other issues# too# that may ma%e the idle mi$ture screws ineffecti!e# ineffecti!e# such as plugged "C) orifaces# warped airhorn causing poor sealing of the idle fuel fuel circuit# and other other issues as outlined in my paper# 4Q-et 4Q-et ?roblems ?roblems " ha!e ;een.6 ;een.6 3e sure to read that article for a full range of other idle circuit issues.
1rocedure se the correct 4@itroCill6 float a!ailable from @7?7I,chlin. @7?7I,chlin. ?art number for most pre-EF Q-ets is 2-HH0. ?art number for most EF-/0 Q-ets is 2-HH2. 2-HH2. =ery =ery early early Q-ets ha!e ha!e uni&ue float numbers numbers ( be sure to to chec% for correct application.
Pou Pou ha!e to pull the top of the carb off to set the float le!el. Aith the top remo!ed# remo!ed# remo!e the big phenolic spacer that co!ers the area around the needleIseat.
;ince we want to wor% on the primary side only# we don8t want the secondaries interfering with the etting process. he!y Q-ets ha!e a secondary loc%out le!er on the passenger side of the carb right at the secondary throttle shaft. This le!er is actuated by the cho%e lin%age# and pre!ents pre!ents the secondaries from opening opening when the engine is cold. " call this the 4primary 4primary et tuning le!er.6 le!er.6 >se a piece of wire or string to engage the le!er with the secondaries so that the secondaries cannot be opened. Pou Pou now need to find a short flat stretch of road to test dri!e the car. Pou need to be able to measure time-to-distance time-to-d istance andIor speed-atspeed -atdistance. " usually find a repeatable stretch stretch of road about 00 feet long. This gets me through 1st gear and into 2 nd. *a%e two or three runs on the car through this stretch and ma%e note of time and speed to distance. 7lso note the seat-of-your-pants seat-of-your-pants feel of the car it8s going to feel pretty slow with the secondaries loc%ed outN. " recommend ma%ing et changes in less than 105 increments. increments. Go to Cigure 2 and determine your ABT metering metering area for your current et si'e. This will be the metering area of the et with the .02D6 rod. Aith this number# number# go to the et 5 hange hart and find the closest metering area match in the left !ertical !ertical *etering 7rea 7rea column >se the 47rea6 column and not the et ;i'e column. The et ;i'e column can only be used on carbs that do not employ a metering rod# such as se this rod with the new et. 3y doing this# you are now changing only 1 parameter at a time9 ABT mi$ture only. only. "dle# off-idle# and e!erything e!erything else is now unchanged# and you will be able to see the results from the mi$ture change at ABT only. only. Aith the secondaries secondaries still loc%ed out# run the car 2 ( times down the same stretch and record results. "f the numbers get better# you8re you8re going the right way with the main et si'e. "f the numbers are worse# you need to ma%e changes to the lean side instead of rich. )epeat this operation until you you determine the main et si'e that produces the best numbers. Bn many stoc% cars# you may be surprised to learn that you end up with the stoc% et si'e. Pou Pou ha!e now optimi'ed main ets.
. Deter#ine #ain #eterin$ #eterin$ rod si&e. NOTE9 There are two different different 4series6 of primary metering rods. Q-ets up through 1EH the 4H*=6 series carbs# a.%.a. 4di!orced 4di!orced cho%e6 carbs use the early series rods. 1EF and later Q-ets the 4*H*6 series carbs# a.%.a. 4integral cho%e6 carbs use the second series rods e$cept some hea!y duty truc% carbs through the E08s# E08s# which remained H*= di!orced cho%e carbs. carbs. ?re-8EF up through 8EH Q-ets use metering rods that are appro$imately 2.HE6 long o!erall total length from the metering tip to the e$treme top of the rod. 1EF and newer Q-ets use rods rods that are about 2.H06 long. long. Pou cannot interchange interchange the two different different rod series. The late style style rods are also a!ailable in the 4*6 series rods# designed for truc% applications. applications. These ha!e fat# .0D6 diameter power tips on them# and should not be used unless you re-calculate the resultant ABT ABT metering areas and account for this in your tuning. Cor e$ample9 7 regular 8ED =ette =ette carb might ha!e a EEIH/ etIrod combination with the correct .02D6 diameter power tip rods. This gi!es you a ABT metering area of H.12 thousands of an inch. "f you use a H/* rod in the same carb# you end up with a ABT metering area of only .D thousands. This is the same as if if you dropped the main et si'e si'e down to a si'e E with the standard-tipped standard-tipped rods. eep these relationships in mind when playing with rods. urrently# urrently# there are no second-series .02D6 power tip primary rods a!ailable from any source ( all second series rods are 4*6 series truc% rods# including those sold by ,delbroc%.
Ahen switching main ets around in ;ection 2 abo!e# you were also swapping out metering rods to %eep the cruise metering area unchanged. Pou did this to ma%e sure that your off-idle throttle throttle response remained unchanged so that the throttle response off idle did not affect the tuning results from the main et re-si'ing. re-si'ing. @ow# with your new main ets# your cruise metering area is e$actly the same as it was before# but that8s not to say it8s right. There are se!eral indicators indicators of correct cruise metering area. Cirst# chec% out Tech Tech Tip Tip F regarding the idle circuit. This is a good indication of a lean condition. 3ut here8s another good indicator of correct cruise metering area9 7 Q-et# when set up with the correct metering rod for cruise : idle# will produce a slight hesitation upon acceleration if the accelerator pump is disconnected. disconnected. >sing a small pin punch or a finish nail# carefully %noc% out the roll pin securing the accelerator pump arm to the top of the carb. carb. " do this with with the engine running running so " don8t don8t ha!e any trouble trouble starting the engine without the the accelerator pump. Aith the the pump disconnected and with with the engine running in neutral# neutral# 4flic%6 the throttle throttle ust a little. "f the engine actually feels more responsi!e more responsi!e with the pump disconnected# your cruise metering area is too rich# and you need to install a fatter set of rods. "f you get a se!ere stumble# stumble# or if the engine dies# you8re you8re on the lean side and need smaller smaller rods. Ahen the rods are correct correct for the ets in use# you will get a slight hesitation when the pump is disconnected. Bnce you ha!e set the rod si'e up li%e this# !erifying both the idle as shown in Tech Tech Tip F and using the disconnected accelerator pump# a road test test is in order. order. "f the car is a little 4flat6 4flat6 on light acceleration# acceleration# or if it has a slight 4surge6 4surge6 at steady cruise# cruise# you need to richen up the metering area slightly. slightly. "f it is smooth and responsi!e on light acceleration# and feels smooth smooth at cruise# you ha!e the rod si'e nailed down. 7gain# use the charts to %eep all changes limited to 105 at a time. This will pre!ent pre!ent you from 4o!er-shooting.6 4o!er-shooting.6 )emember# )emember# with the main et si'e determined# your your rod si'ing is affecting idle# off-idle# off-idle# light acceleration# and cruise. "n most cases# when there are problems with with stumbles# poor idle# idle speed speed that starts starts out high and then then degrades# and surging surging at cruise# cruise# the rods are are too big and are causing a lean condition. Bn the other hand# if the rods are too small# causing a rich condition# the throttle will feel 4la'y6 or 4slow6 when you re! the engine# and you may get a puff of blac% smo%e with a hesitation when you 4flic%6 the throttle. orrect rods will produce crisp# clean and instant throttle response. response. . Deter#ine secondar4 secondar4 rod si&e. Pou Pou are now finally ready to unloc% the secondaries. 3ut before you start changing the rods# you want to get the secondary opening rate set up. This is determined determined by the spring windup.
"t is a !ery common 4speed tric%6 to loosen the secondary windup spring so that the secondaries will open !ery &uic%ly. &uic%ly. This is the single most common cause of a se!ere stumble or hesitation upon acceleration or transition into the secondaries. The secondary spring windup is adusted with a small# slotted-head slotted-head screw on the passenger side of the carb# right at the top of the carb on the secondary side. The screw head points right out to the side. 0 degrees from this# on the bottom# there is an allen-head loc% screw that %eeps the slotted slotted screw from turning. turning. "f you ha!e trouble seeing it# it# place a mirror under the area area until you spot it. Aith a small slotted screwdri!er screwdri!er holding the adustment screw# loosen the allen screw about U turn. This will allow you to turn the slotted adustment screw. screw. ounting the turns# allow the slotted screw to slowly unwind until all spring tension is gone. Pou Pou can use your mirror to see the spring disengage contact from the pin le!er underneath underneath the air horn. "f the spring tension was lost after only K turn# the windup was too loose. loose. 3ring the spring into into contact with the le!er. le!er. @ote when it just it just barely barely touches. touches. Crom this point# wind the
spring up between turn and EI/ turn. This is a good starting point# and will pre!ent any bogs or hesitations due to premature premature secondary opening. @ow# you need to adust the secondary rod rod hanger height. Pou8!e read read all about the the different different letter numbers numbers for the secondary secondary hangers# and how a 4P6 hanger will ma%e your car faster than an 4*6 hanger or whate!er. Cact is# you can bend and adust any hanger to any hanger height you want# so it doesn8t ma%e a hec% of a lot of difference what hanger you choose to use. ust get it set up right9 Aith the secondary air!al!e held wide open and the secondary rods pulled all the way up# measure the distance from the top of the rear wall of the cho%e horn horn to the secondary rod hanger hole in the the hanger. This distance distance should be H1IDH6. 3end the hanger to adust ( you ha!e to adust adust each of the two sides independently independently.. Pou now ha!e a 4performance6 4performance6 rod hanger. hanger. Aith this set# you can now play with secondary metering rods. 7 common common speed tric% mista%e is to always install thinner richer secondary rods. ;ome engines and carbs carbs will produce a secondary 4lag6 4lag6 if the rods are too thin. Bn about half of the engines engines " wor% on# " obtain better performance by installing fatter fatter 4non-performance6 rods. 7gain# 7gain# a &uic% road test is the only way to set this up# so go bac% to your 00-foot stretch and ma%e a few runs with rods both richer and leaner. Bnce you ha!e found the rods producing the smoothest secondary transition and the best numbers# you can start unwinding the secondary air!al!e spring. )ela$ the spring tension in 1I/ turn increments until the car stumbles on acceleration# then tighten up 1I/ turn again. Pou ha!e now determined the &uic%est secondary opening rate that your engine can handle# and your secondary mi$ture is set. @ote that secondary secondary metering rods rods come in three three different different tapers9 long tip# short tip# and medium medium tip see Cigure Cigure . *ost of the a!ailable after-mar%et after-mar%et metering rods ha!e the long tips# and these will produce a full-rich mi$ture upon the slightest opening of the secondaries. *any street engines will produce better better performance by using the short tipped rods. 7 short short tipped rod does not allow a full-rich mi$ture until the secondaries are opened &uite a ways# %eeping the mi$ture a little lean initially. This can produce smoother and crisper performance in many applications. applications. @e$t time you see a un% Q-et laying around# ma%e sure you yan% the rods and ets out of it9 many old truc% carbs ha!e some really good short-tipped secondary rods in them. Cigure lists all the secondary rod letter codes# part numbers# and measurements.
Quic5ie 1erfor#ance %etu +on8t want to spend the time and hassle of a detailed fine-tune setupO
ount the number of turns that the idle mi$ture screws are adusted out from from lightly seated. *ost H*= carbs will run well with a base setting of about H turns out. out. *ost *H* carbs will run run well at about D turns out. ompare these recommended recommended settings to the the number of turns on your screws# and set both of your screws to the same number of turns out from lightly seated. )emo!e the throttle plate 4base 4base plate6 from the float bowl. Bpen the throttle le!er fully and obser!e the secondary throttle throttle plate opening9 Ahen the secondary throttles throttles are fully open# they should should be open just open just short of vertical vertical . @ot !ertical# and not past !ertical. There is a tang on the primary throttle lin%age# pointing straight bac%# which determines how far the secondary throttle opens. Pou can bend this slightly slightly to obtain the ust-short-of-!ertical ust-short-of-!ertical setting setting on the secondary secondary throttle. ?ut the throttle plate bac% onto the float bowl# and 4stuff6 4stuff6 all the float parts and power pistonIrod parts bac% into the bowl. Clip the airhorn 4top of the carb6 upside-down and obser!e the secondary air!al!e air!al!e spring on the passenger side of the carb. Loosen the allenhead loc% screw on the bottom surface of the airhorn and rotate the slotted adustment screw in the side of the airhorn until the spring loosens from the 4tang6 on the airhorn shaft. )otate the adustment screw until the spring spring ust barely contacts the shaft tang# and then rotate it another turn 1I2 turn for ?ontiacs. ?ontiacs. Loc% down the loc% screw. "nstall the airhorn to the carb# and slap the carb bac% on the engine. This 4baseline blueprint6 blueprint6 setup will produce a !ery good le!el of performance on most most street engines. engines. 7lso# the the carb teardown teardown will ha!e e$posed e$posed any damagedIalteredImissing damagedIalteredImissing parts in your your carb ( there are a lot of carbs with badly altered and damaged parts due to the age of these carbs now. ?ic%ing ?ic%ing up a few parts carbs from swap meets and un%yards is a pretty good ideaN ;tart the engine engine and let it warm up. 7dust the idle idle mi$ture screws e!enly e!enly to obtain best &uality idle. idle. "f you ha!e a little bit of an an ear and a feel for the car# you don8t need a !acuum gauge to do this9 ust listen and feel for what the engine wants. )un the screws as lean inward as possible for best idle &uality. &uality. "f you need to pass an emissions test# run the screws in lean to obtain a F0rpm idle speed drop after best idle &uality &uality is achie!ed. ;et idle speed# and you8re you8re ready to goM
1arts "f you don8t ha!e a stash of used Q-ets in your basement to rob ets and rods out of# you can get parts from ,delbroc%. Pour local parts store should should be able to order order them for you. Collowing is is a partial listing listing of ,delbroc% ,delbroc% Q-et parts parts and part numbers9 numbers9 1ri#ar4 'eterin$ Rods (airs) for +67 8 ear2ier" .0F6 1D .06 1 .0H6 .0E6 1E .0H16 1H2 .0HF6
1HH 1HD
1ri#ar4 'eterin$ Rods (airs) for +67/ 8 2ater (NOTE" These are 9':-series rods with .;0: ower tis<)" .0H/6 1H1 .0F26 1HF .0F06 1H .0FH6 1HE %econdar4 'eterin$ Rods (airs) for a22 4ears" 1F0 1F2 , 1F1 7P 1F 1ri#ar4 'eterin$ Jets (airs) for a22 4ears" .0D/6 1D/ .0E26 1E2 .0D6 1D .0E6 1E .0E06 1E0 .0EH6 1EH .0E16 1E1 .0EF6 1EF
L
1FH
.0ED6 .0EE6
1ED 1EE
22 3ets= rods and Q-Jet arts have been discontinued b4 >' and are no longer a!ailable. Pou Pou may be able to find indi!idual dealers with some random shelf stoc% remaining remaining if ha!e your local G* parts dealer do an in!entory search on stoc%. These shelf stoc% items are disappearing fast.
The last good aftermar%et source for Q-et parts parts is from arbs >nlimited. They carry a full line of ets and the rods for the early applications. They also carry parts such as cho%e pulloffs# inlet fittings# fittings# springs# and lin%ages. lin%ages. Go to their website to see a full line of parts. liff liff )uggles and and
?i$ure +" !arb art nu#ber 2istin$ 8 stoc5 stoc5 3ettin$ Ca r b# *=800 cf m
Appl i cat i on
Mai nJet
Mai nRod
Spr i ng
Sec.Rod
JetAr ea ( 1Jet ,. 0 0 1 " ) Cr ui s e
JetAr ea ( 1Jet ,. 0 0 1 " ) WOT
7025200
CHEV65396ATEARL Y
71
44
7029922
7031208
2. 4387
3. 4283
7025201
CHEV65396MTEARL Y
71
41
7029922
7031208
2. 6389
3. 4283
7025220
CHEV65396ATLATE
71
44
7029922
7031208
2. 4387
3. 4283
7025221
CHEV65396MTLATE
71
44
7029922
7031208
2. 4387
3. 4283
7026200
CHEV66396AT
71
44
7029922
AX
2. 4387
3. 4283
7026201
CHEV66396MT
71
41
7029922
AX
2. 6389
3. 4283
7026202
CHEV66327ATEARL Y
71
45
7029922
AK
2. 3688
3. 4283
7026203
CHEV66327MT
71
43
7029922
AK
2. 5070
3. 4283
7026204
CHEV66427AT
71
46
7029922
AX
2. 2973
3. 4283
7026205
CHEV66427MT
71
41
7029922
AX
2. 6389
3. 4283
7026210
CHEV66327ATLATE
71
45
7029922
AK
2. 3688
3. 4283
7026240
BUI CK66425w/ oA. I . R.
74
45
7011957
AK
2. 7104
3. 7699
7026242
BUI CK66400w/ oA. I . R.
74
45
7011957
AK
2. 7104
3. 7699
7026250
OLDS66400&455STDwo/ A. I . R
71
44
7029922
AU
2. 4387
3. 4283
7026254
OLDS66330STDwo/ A. I . R
71
44
7029922
AT
2. 4387
3. 4283
7026255
OLDS66330J et awaywo/ A. I . R
71
44
7029922
AT
2. 4387
3. 4283
7026256
OLDS66400&455J et awaywo/ A. I . R
71
44
7029922
AU
2. 4387
3. 4283
7027032
OLDS67400&425STDW/ C. C. C.
71
45
7029922
AU
2. 3688
3. 4283
7027081
CRUSADERMARI NE427EARL Y
69
35
7029529
AH
2. 7772
3. 2084
7027130
OLDS67425TORONADO W/ A. I . R.
71
45
7029922
AU
2. 3688
3. 4283
7027131
OLDS67425TORONADO W/ O A. I . R.
71
44
7029922
AU
2. 4387
3. 4283
7027132
OLDS67425TORONADO W/ C. C. C.
71
45
7029922
AU
2. 3688
3. 4283
7027156
OLDS67400&425STDW/ O A. I . R.
71
44
7029922
AU
2. 4387
3. 4283
7027156
OLDS67400&425STDW/ RAM AI R
71
41
7029922
AU
2. 6389
3. 4283
7027157
OLDS67400&425STDW/ A. I . R.
71
45
7029922
AU
2. 3688
3. 4283
7027200
CHEV67396/ 427ATW/ O A. I . R.
71
44
7029922
AX
2. 4387
3. 4283
7027201
CHEV67396/ 427MTW/ O A. I . R.
71
41
7029922
AX
2. 6389
3. 4283
7027202
CHEV67327&3501s tT y peATW/ O A. I . R.
71
45
7029922
AN
2. 3688
3. 4283
7027203
CHEV67327&3501s tT y peMTW/ O A. I . R.
71
43
7029922
AN
2. 5070
3. 4283
7027210
CHEV67396/ 427AT
71
44
7029922
AX
2. 4387
3. 4283
7027211
CHEV67396/ 427MT
71
41
7029922
AX
2. 6389
3. 4283
7027216
CHEV67396/ 427W/ O A. I . R.
71
44
7029922
AX
2. 4387
3. 4283
7027218
CHEV67327/ 350W/ O A. I . R.
71
45
7029922
AX
2. 3688
3. 4283
7027262
PONT67400AT&MTGTO
70
41
7002071
BF
2. 5282
3. 3175
7027263
PONT67400MTw/ oA. I . R.
70
39
7002071
BF
2. 6539
3. 3175
7028207
CHEV68327/ 350MTVETTE
71
46
7036019
AN
2. 2973
3. 4283
7028208
CHEV68327/ 350ATVETTE
71
46
7036019
AN
2. 2973
3. 4283
7028209
CHEV68427HI GHPERFMTVETTE
71
45
7036019
AX
2. 3688
3. 4283
7028210
CHEV68396&427STDAUTO
71
49
7036019
AX
2. 0735
3. 4283
7028211
CHEV68396&427STDMANUAL
71
45
7036019
AX
2. 3688
3. 4283
7028212
CHEV68327/ 350AT
71
46
7036019
AN
2. 2973
3. 4283
7028213
CHEV68327/ 350FULL SI ZE&TRUCKMT
71
46
7036019
AN
2. 2973
3. 4283
7028216
CHEV68427HI GHPERFATVETTE
71
47
7036019
AX
2. 2242
3. 4283
7028217
CHEV68396HIPERFMTVETTE&TRUCK
71
45
7036019
AX
2. 3688
3. 4283
7028218
CHEV68396HI GHPERFATVETTE
71
47
7036019
AX
2. 2242
3. 4283
7028219
CHEV68HI GHPERFMTVETTE
66
36
7036019
BG
2. 4033
2. 8903
7028229
CHEV68HI GHPERFMTCHEVYI I
66
36
7036019
BG
2. 4033
2. 8903
7028240
BUI CK68430AT
70
44
7011957
AY
2. 3279
3. 3175
7028262
PONT68400STDAT
73
43
7037305
BE
2. 7332
3. 6545
7028263
PONT68400MTGTO
72
40
7037305
BE
2. 8149
3. 5406
7028267
PONT68400H. O.MTGTO
72
41
7037305
BE
2. 7512
3. 5406
7028268
PONT68400&400H. O.ATGTO
73
42
7037305
BE
2. 7999
3. 6545
7028268
PONT68GTO Bes tT unedCondi t i on
71
42
7037305
DA
2. 5737
3. 4283
7028270
PONT68400RAM AI RATaf t erJ an68
72
41
7037305
BE
2. 7512
3. 5406
7028270
PONT69400ATRAM AI RI I I
72
41
7037305
BE
2. 7512
3. 5406
7028273
PONT68400RAM AI RMTaf t erJ an68
72
42
7037305
BE
2. 6861
3. 5406
7028273
PONT69400MTRAM AI RI I I
72
42
7037305
BE
2. 6861
3. 5406
7028274
PONT68400ATEARL YRAM AI R
73
41
7037305
BE
2. 8651
3. 6545
7028275
PONT68400MTEARL YRAM AI R
72
40
7037305
BE
2. 8149
3. 5406
7028282
CRUSADERMARI NE427LATE
69
35
7029529
AH
2. 7772
3. 2084
7029200
CHEV69CAMARO,VETTE396/ 427AUTO
71
49
7036019
BC
2. 0735
3. 4283
7029201
CHEV69CAMARO,VETTE396/ 427MAN
71
45
7036019
BC
2. 3688
3. 4283
7029202
CHEV69350300HPATVETTE
67
42
7036019
AN
2. 1402
2. 9947
7029203
CHEV69350300HPMTVETTE
67
38
7036019
AN
2. 3915
2. 9947
7029204
CHEV69CAMARO,VETTE396/ 427AUTO
71
47
7036019
AX
2. 2242
3. 4283
7029207
CHEV69350325HPVETTE
66
36
7036019
BG
2. 4033
2. 8903
7029214
CHEV69396TRUCK
71
45
7037851
BC
2. 3688
3. 4283
7029215
CEHV69396/ 427MT
71
45
7036019
AX
2. 3688
3. 4283
7029223
CHEV69350TRUCKM/ T
67
38
7037851
AN
2. 3915
2. 9947
7029224
CHEV69350TRUCKA/ T
67
38
7037851
AN
2. 3915
2. 9947
7029230
CAD69472STDW/ O A/ C
70
44
7037298
BH
2. 3279
3. 3175
7029231
CAD69472STDA/ C
70
44
7037298
BH
2. 3279
3. 3175
7029232
CAD69472ELDORADO W/ O A/ C
70
42
7037298
BH
2. 4630
3. 3175
7029233
CAD69472ELDORADO A/ C
70
42
7037298
BH
2. 4630
3. 3175
7029240
BUI CK69430A/ T
70
45
7011957
AY
2. 2580
3. 3175
7029241
BUI CK69430RI VI ERA
70
43
7011957
AY
2. 3962
3. 3175
7029242
BUI CK69400A/ T
70
45
7011957
AY
2. 2580
3. 3175
7029243
BUI CK69400,403M/ T
71
45
7011957
AY
2. 3688
3. 4283
7029244
BUI CK69350A/ T
70
44
7011957
AK
2. 3279
3. 3175
7029245
BUI CK69350M/ T
73
43
7011957
AK
2. 7332
3. 6545
7029246
BUI CK69400ST AGE1
70
45
7011957
AY
2. 2580
3. 3175
7029251
OLDS69350STD
70
49
7036019
AT
1. 9627
3. 3175
7029263
PONT69400MTGTO
71
44
7037305
BE
2. 4387
3. 4283
7029268
PONT69400ATGTO
71
44
7037305
BE
2. 4387
3. 4283
7029270
PONT69400ATRAM AI RI V
69
38
7037305
BP
2. 6052
3. 2084
7029273
PONT69400MTRAM AI RI V
69
37
7037305
BP
2. 6641
3. 2084
7036240
BUI CK66425A. I . R.
74
47
7011957
AK
2. 5659
3. 7699
7036242
BUI CK66400A. I . R.
74
47
7011957
AK
2. 5659
3. 7699
7036250
OLDS66400&455STDw/ A. I . R
71
44
7029922
AU
2. 4387
3. 4283
7036254
OLDS66330STDw/ A. I . R
71
44
7029922
AT
2. 4387
3. 4283
7037200
CEHV67396/ 427ATA. I . R.
71
46
7029922
AX
2. 2973
3. 4283
7037201
CEHV67396/ 427MTA. I . R.
71
41
7029922
AX
2. 6389
3. 4283
7037202
CHEV67327&3501s tT y peATA. I . R.
71
45
7029922
AN
2. 3688
3. 4283
7037203
CHEV67327&3501s tT y peMTA. I . R.
71
41
7029922
AN
2. 6389
3. 4283
7037210
CHEV67396/ 427aTA. I . R.LATE
71
46
7029922
AX
2. 2973
3. 4283
7037211
CHEV67396/ 427MTA. I . R.LATE
71
41
7029922
AX
2. 6389
3. 4283
7037213
CHEV67327&3502ndt y peMTw/ oA. I . R.
71
43
7029922
AN
2. 5070
3. 4283
7037216
CHEV67396/ 427A. I . R.
71
46
7029922
AX
2. 2973
3. 4283
7037218
CHEV67327/ 350A. I . R.
71
45
7029922
AX
2. 3688
3. 4283
7037262
PONT67400ATw/ A. I . R.GTO
70
40
7002071
BF
2. 5918
3. 3175
7037263
PONT67400MTw/ A. I . R.GTO
70
38
7002071
BF
2. 7143
3. 3175
7037271
PONT67400RAM AI Raf t er6Feb67
70
38
7002071
BF
2. 7143
3. 3175
7040200
CHEV70CHVL,VETTEBBAUTO
78
49
7036019
BG
2. 8926
4. 2474
7040201
CHEV70CHVL,VETTEBB4SPD
78
48
7036019
BG
2. 9688
4. 2474
7040202
CHEV70CHEVELLE,CAMARO 350AUTO
76
44
7036019
BA
3. 0159
4. 0055
7040203
CHEV70CHEVELLE,CAMARO 3504SPD
76
44
7036019
BA
3. 0159
4. 0055
7040204
CHEV70CHVL,VETTEBBAUTO
78
49
7036019
AX
2. 8926
4. 2474
7040205
CHEV70CHVL,VETTEBB4SPD
78
49
7036019
AX
2. 8926
4. 2474
7040206
CHEV70TRUCK396FED
75
42
7036019
BG
3. 0324
3. 8869
7040207
CHEV70350FEDERALVETTEM/ T
76
44
7036019
BA
3. 0159
4. 0055
7040208
CHEV70TRUCK350FED
75
39
7036019
BA
3. 2233
3. 8869
7040213
CHEV70VETTE3504SPD
76
44
7036019
BA
3. 0159
4. 0055
7040221
CHEV70CHVL,VETTEBB4SPD
78
48
7036019
BG
2. 9688
4. 2474
7040240
BUI CK70455A/ T
67
41
7011957
CD
2. 2054
2. 9947
7040243
BUI CK70455M/ T
67
41
7011957
AY
2. 2054
2. 9947
7040244
BUI CK70350A/ T
69
44
7011957
BS
2. 2187
3. 2084
7040245
BUI CK70350M/ T
73
43
7011957
BS
2. 7332
3. 6545
7040246
BUI CK70455ST AGE1M/ T&A/ T
68
42
7011957
AU
2. 2462
3. 1008
7040247
BUI CK70455RI VI ERA
67
41
7011957
CD
2. 2054
2. 9947
7040251
OLDS70455
70
49
7037734
AU
1. 9627
3. 3175
7040253
OLDS70CUTLASS&442455
69
7040699
7037734
AU
##########
3. 2084
7040257
OLDS70455W33A/ T
69
7040701
7037734
AU
##########
3. 2084
7040263
PONT70400MTFEDERALGTO
71
44
7037305
CC
2. 4387
3. 4283
7040264
PONT70400ATFEDERALGTO
70
41
7037305
BP
2. 5282
3. 3175
7040267
PONT70455MTFEDERALGTO
71
42
7037305
CC
2. 5737
3. 4283
7040268
PONT70455ATFEDERALGTO
71
42
7037305
CC
2. 5737
3. 4283
7040270
PONT70400&455RAM AI RATGTO
70
39
7037305
CC
2. 6539
3. 3175
7040273
PONT70400&455RAM AI RMTGTO
70
39
7037305
CC
2. 6539
3. 3175
7040500
CHEV70CHVL,VETTEBBAUTO CALI F
78
49
7036019
BG
2. 8926
4. 2474
7040501
CHEV70CHVL,VETTEBB4SPDCALI F
78
48
7036019
BG
2. 9688
4. 2474
7040502
CHEV70CHVL,CAM 350AUTO CALI F
76
44
7036019
BA
3. 0159
4. 0055
7040503
CHEV69350300hp CAMARO Bes tT uned
74
43
7036019
AK
2. 8486
3. 7699
7040503
CHEV70CHVL,CAM 3504SPDCALI F
76
44
7036019
BA
3. 0159
4. 0055
7040504
CHEV70CHVL,VETTEBBAUTO CALI F
78
49
7036019
BG
2. 8926
4. 2474
7040505
CHEV70CHVL,VETTEBB4SPDCALI F
78
49
7036019
BG
2. 8926
4. 2474
7040507
CHEV70VETTE3504SPDCALI F
76
44
7036019
BA
3. 0159
4. 0055
7040509
CHEV70TRUCK396CALI F
78
49
7036019
BG
2. 8926
4. 2474
7040511
CHEV70TRUCK350CALI F
76
44
7036019
BA
3. 0159
4. 0055
7040513
CHEV70VETTE3504SPDCALI F
76
44
7036019
BA
3. 0159
4. 0055
7040521
CHEV70CHVL,VETTEBB4SPDCALI F
78
48
7036019
BG
2. 9688
4. 2474
7040563
PONT70400MTCALI FORNI AGTO
68
36
7037305
BU
2. 6138
3. 1008
7040564
PONT70400ATCALI FORNI AGTO
68
38
7029922
BU
2. 4976
3. 1008
7040567
PONT70455MTCALI FORNI AGTO
70
40
7029922
BU
2. 5918
3. 3175
7040568
PONT70455ATCALI FORNI AGTO
69
37
7029922
BU
2. 6641
3. 2084
7040570
PONT70400&455RAM AI RCALI F .
67
33
7037305
CC
2. 6704
2. 9947
7040573
PONT70400&455RAM AI RMTCALI F .
67
33
7037305
CC
2. 6704
2. 9947
7041200
CHEV71CHEVELLE402/ 454AUTO
77
49
7036019
BG
2. 7709
4. 1257
7041201
CHEV71CHEVELLE402/ 454MAN
77
49
7036019
BG
2. 7709
4. 1257
7041202
CHEV71CHEVELLE350AUTO
74
44
7036019
AR
2. 7803
3. 7699
7041203
CHEV71CHEVELLE350MAN
74
44
7036019
AR
2. 7803
3. 7699
7041204
CHEV71454ATVETTE
77
49
7036019
BG
2. 7709
4. 1257
7041205
CHEV71454MTVETTE
77
49
7036019
BG
2. 7709
4. 1257
7041206
CHEV71402SERI ES20&30TRUCK
74
42
7036019
BG
2. 9154
3. 7699
7041208
CHEV71350SERI ES20&30TRUCK
74
39
7036019
BA
3. 1062
3. 7699
7041209
CHEV71402SERI ES10TRUCK
77
49
7036019
BG
2. 7709
4. 1257
7041211
CHEV71350SERI ES10TRUCK
74
42
7036019
BA
2. 9154
3. 7699
7041212
CHEV71Vet t e350A/ T
74
44
7036019
AR
2. 7803
3. 7699
7041213
CHEV71Vet t e350M/ T
74
44
7036019
AR
2. 7803
3. 7699
7041230
CAD71472&500STD
71
47
7036019
CE
2. 2242
3. 4283
7041231
CAD71472&500LI MO
71
47
7036019
CE
2. 2242
3. 4283
7041232
CAD71472&500ELDORADO
67
39
7036019
CF
2. 3311
2. 9947
7041262
PONT71455ATGTO
71
43
7037305
BU
2. 5070
3. 4283
7041263
PONT71400MTGTO
75
47
7037305
BU
2. 6829
3. 8869
7041264
PONT71400ATGTO
71
46
7037305
BP
2. 2973
3. 4283
7041267
PONT71455H. O.MTGTO
73
38
7037305
BP
3. 0513
3. 6545
7041268
PONT71455H. O.ATGTO
74
43
7037305
BP
2. 8486
3. 7699
7041270
PONT71455ATRAM AI R
74
43
7037305
BP
2. 8486
3. 7699
7041271
PONT71400,455A, B, F , G ATnoRAHi Al t
69
43
7037305
BP
2. 2871
3. 2084
7041273
PONT71455MTRAM AI R
73
38
7037305
BP
3. 0513
3. 6545
7041273
PONT71455H. O.Bes tT unedCondi t i on
72
38
7037305
BP
2. 9374
3. 5406
7041304
BUI CK66425SRw/ oA. I . R.
74
45
7011957
AK
2. 7104
3. 7699
7041307
BUI CK66400SRw/ oA. I . R.
74
45
7011957
AK
2. 7104
3. 7699
7041308
BUI CK66425SRA. I . R.
74
47
7011957
AK
2. 5659
3. 7699
7041309
BUI CK66400SRA. I . R.
74
47
7011957
AK
2. 5659
3. 7699
7041310
OLDS66SR400&425J ETAWAY
71
44
7029922
AU
2. 4387
3. 4283
7041311
OLDS66SR330J ETAWAY
71
44
7029922
AT
2. 4387
3. 4283
7041312
OLDS66SR400&425STD
71
44
7029922
AU
2. 4387
3. 4283
7041313
OLDS66SR330STD
71
44
7029922
AT
2. 4387
3. 4283
7042202
CHEV72350CHVL&VETTEFEDA/ T
74
45
7036019
DA
2. 7104
3. 7699
7042203
CHEV72Vet t eFedM/ T350
74
45
7036019
DA
2. 7104
3. 7699
7042206
CHEV72402TRUCKSERI ES20&30A/ T
72
43
7036019
DA
2. 6193
3. 5406
7042207
CHEV72402TRUCKSERI ES20&30M/ T
72
43
7036019
DA
2. 6193
3. 5406
7042208
CHEV72350TRUCKSERI ES10FEDA/ T
71
36
7036019
CP
2. 9413
3. 4283
7042210
CHEV72350TRUCKG10FEDALL
74
43
7036019
DA
2. 8486
3. 7699
7042211
CHEV72350TRUCKSERI ES10FEDM/ T
74
43
7036019
DA
2. 8486
3. 7699
7042215
CHEV72CHEVELLEMAN
77
45
7036019
CM
3. 0662
4. 1257
7042216
CHEV72Vet t eA/ T454
77
49
7036019
CM
2. 7709
4. 1257
7042217
CHEV72Vet t eM/ T454
77
45
7036019
CM
3. 0662
4. 1257
7042218
CHEV72402TRUCKSERI ES10A/ T
77
45
7036019
CM
3. 0662
4. 1257
7042219
CHEV72402TRUCKSERI ES10M/ T
77
45
7036019
CM
3. 0662
4. 1257
7042220
CHEV72CHEVELLEAUTO
77
49
7036019
CM
2. 7709
4. 1257
7042238
CAD72LI MO 472&500CI
69
43
7029529
BC
2. 2871
3. 2084
7042251
OLDS72455AT&MT
69
50
7036019
CH
1. 7758
3. 2084
7042262
PONT71455ATCALI FORNI A
72
43
7037305
CR
2. 6193
3. 5406
7042263
PONT72400MTGTO
72
45
7037305
CS
2. 4811
3. 5406
7042264
PONT72400ATCALI FORNI A
74
47
7037305
CR
2. 5659
3. 7699
7042270
PONT72455H. O.AT
71
45
7037305
CR
2. 3688
3. 4283
7042272
PONT72455ATGTO
72
43
7029922
CR
2. 6193
3. 5406
7042273
PONT72455H. O.MT
71
43
7037305
CR
2. 5070
3. 4283
7042273
PONT73455S. D.MTEar l y
71
43
7037305
CR
2. 5070
3. 4283
7042274
PONT72400ATFEDERAL
74
47
7029922
CS
2. 5659
3. 7699
7042276
PONT72455ATHIAL TI TUDE
71
43
7037851
CR
2. 5070
3. 4283
7042278
PONT72400ATHIAL TI TUDE
72
46
7037851
CS
2. 4096
3. 5406
7042902
CHEV72Vet t eFedA/ T350
74
45
7036019
DA
2. 7104
3. 7699
7042903
CHEV72Vet t eCal i f .M/ T350
74
45
7036019
DA
2. 7104
3. 7699
7042910
CHEV72350TRUCKSERI ES10CA A/ T
74
43
7036019
DA
2. 8486
3. 7699
7042911
CHEV72350TRUCKSERI ES10CA M/ T
74
43
7036019
DA
2. 8486
3. 7699
7043200
CHEV73454al l A/ T&T r uc k
77
50
7036019
DA
2. 6931
4. 1257
7043201
CHEV73454al l M/ T&T r uc k
77
48
7036019
DA
2. 8471
4. 1257
7043202
CHEV73350al l Aut o&Tr uc k
73
44
7036019
DA
2. 6649
3. 6545
7043203
CHEV73350al l M/ T&T r uc k
73
44
7036019
DA
2. 6649
3. 6545
7043207
CHEV73454TRUCKFEDC20,30&P30
69
39
7036019
DA
2. 5447
3. 2084
7043208
CHEV73350TRUCKALLC,P,K20&30
68
36
7037305
DA
2. 6138
3. 1008
7043210
CHEV73350TRUCKA/ TG SERI ES10
73
42
7036019
DA
2. 7999
3. 6545
7043211
CHEV73350TRUCKM/ TG SERI ES10
73
42
7036019
DA
2. 7999
3. 6545
7043212
CHEV73Vet t eHi Per f .Aut o
74
44
7036019
DA
2. 7803
3. 7699
7043213
CHEV73Vet t eHi Per f .M/ T
74
44
7036019
DA
2. 7803
3. 7699
7043215
CHEV73350G&PSERI ES30MOTORHOME
72
39
7037305
DA
2. 8769
3. 5406
7043216
CHEV73454P30SUBURBANFED&CAL
77
48
7036019
DA
2. 8471
4. 1257
7043250
OLDS7374350CUTLASSA/ T
69
7047907
7040498
AS/ CG
##########
3. 2084
7043254
GMCMot or homew/ 455OLDS
70
38
7036019
CJ
2. 7143
3. 3175
7043262
PONT73455AT
71
41
7029529
CR
2. 6389
3. 4283
7043263
PONT73400MT
71
43
7037851
CS
2. 5070
3. 4283
7043264
PONT73400AT
72
43
7029529
DB
2. 6193
3. 5406
7043265
PONT73455Fi r ebi r dM/ T
71
44
7029922
CR
2. 4387
3. 4283
7043266
PONT73400LATEAT
72
45
7029529
DB
2. 4811
3. 5406
7043270
PONT73455S. D.AT
76
51
7029529
BV
2. 4936
4. 0055
7043272
PONT73455ATHIAL TI TUDE
70
41
7029529
CR
2. 5282
3. 3175
7043273
PONT73455SDMT
75
49
7029529
BV
2. 5321
3. 8869
7043274
PONT73400ATHIAL TI TUDE
72
45
7037851
DB
2. 4811
3. 5406
7043507
CHEV73454TRUCKCALC20,30&P30
70
34
7036019
DA
2. 9405
3. 3175
7044201
CHEV74454CHVLALLM/ T
75
39
7036019
DH
3. 2233
3. 8869
7044202
CHEV74CHEVELLE350AUTO &TRUCK
75
46
7029529
CH
2. 7560
3. 8869
7044203
CHEV74CHEVELLE350MAN&TRUCK
75
46
7029529
CH
2. 7560
3. 8869
7044206
CHEV74Vet t e&Nov aFedA/ T
75
46
7029529
CH
2. 7560
3. 8869
7044207
CHEV74Vet t e&Nov aFedM/ T
75
46
7029529
CH
2. 7560
3. 8869
7044208
CHEV74350Camar oHi Per f .A/ T
75
43
7036019
DA
2. 9657
3. 8869
7044209
CHEV74350Camar oHi Per f .M/ T
75
43
7036019
DA
2. 9657
3. 8869
7044210
CHEV74Vet t e350Hi Per f .A/ T
75
43
7036019
DA
2. 9657
3. 8869
7044211
CHEV74Vet t e350Hi Per f .M/ T
75
43
7036019
DA
2. 9657
3. 8869
7044212
CHEV74454TRUCKC20,30,P30MTRHM
69
34
7037298
DH
2. 8314
3. 2084
7044213
CHEV74350TRUCKCK20&C30
68
36
7037305
CP
2. 6138
3. 1008
7044214
CHEV74350TRUCKG30VANFED
72
39
7037305
CP
2. 8769
3. 5406
7044215
CHEV74350TRUCKP30MOTORHOMEFED
72
39
7037305
CP
2. 8769
3. 5406
7044216
CHEV74350TRUCKP20,30FED
68
36
7037305
CP
2. 6138
3. 1008
7044217
CHEV74454TRUCKC30EXCMTRHM A/ T
69
34
7037298
DH
2. 8314
3. 2084
7044218
CHEV74350VAN&VANDURAFEDA/ T
75
46
7029529
CH
2. 7560
3. 8869
7044219
CHEV74350TRUCKALLFEDM/ T
75
43
7036019
CH
2. 9657
3. 8869
7044221
CHEV74454VETTEALLM/ T
75
39
7036019
DH
3. 2233
3. 8869
7044223
CHEV7445 4MONTE,VETTE&TRUCKFED A/ T
75
41
7036019
DH
3. 0976
3. 8869
7044224
CHEV74350SPORTVAN,RALL YFEDA/ T
75
43
7029529
CH
2. 9657
3. 8869
7044225
CHEV74454VETTEFEDA/ T
75
41
7036019
DH
3. 0976
3. 8869
7044226
CHEV74WAGON400AUTO
73
44
7029529
DL
2. 6649
3. 6545
7044227
CHEV74454SUBURBANA/ TFED
74
37
7036019
DH
3. 2256
3. 7699
7044262
PONT74Fi r ebi r d455FedA/ T
71
41
7029529
CR
2. 6389
3. 4283
7044266
PONT74ALLAT
72
45
7029529
DB
2. 4811
3. 5406
7044268
PONT74350AT
72
43
7029529
DB
2. 6193
3. 5406
7044269
PONT74350MT
68
35
7037851
DB
2. 6696
3. 1008
7044274
PONT74ALLHIAL TI TUDE
72
45
7037851
DB
2. 4811
3. 5406
7044500
CHEV7445 4MONTE,VETTE&TRUCKCA A/ T
75
41
7036019
DH
3. 0976
3. 8869
7044502
CHEV74CHEVELLE350A/ TCA&TRUCK
75
46
7037851
CH
2. 7560
3. 8869
7044503
CHEV74CHEVELLE350M/ TCA&TRUCK
75
46
7037851
CH
2. 7560
3. 8869
7044505
CHEV74454VETTECAA/ T
75
41
7036019
DH
3. 0976
3. 8869
7044506
CHEV74Vet t e&Nov aCal i f .A/ T
75
46
7037851
CH
2. 7560
3. 8869
7044507
CHEV74Vet t e&Nov aCal i f .M/ T
75
46
7037851
CH
2. 7560
3. 8869
7044512
CHEV74454TRUCK20,30,MTRHM CA
69
34
7037298
DH
2. 8314
3. 2084
7044513
CHEV74350TRUCKCK20&C30CALI F
68
36
7037305
CP
2. 6138
3. 1008
7044514
CHEV74350TRUCKG30VANCALI F
72
39
7037305
CP
2. 8769
3. 5406
7044515
CHEV74350TRUCKP30MOTORHOMECA
72
39
7037305
CP
2. 8769
3. 5406
7044516
CHEV74350TRUCKP20,30CALI F
68
36
7037305
CP
2. 6138
3. 1008
7044517
CHEV74454TRUCKP30EXCMTRHM CA
69
34
7037298
DH
2. 8314
3. 2084
7044518
CHEV74350MOTORHOMECALI FA/ T
75
42
7037851
CH
3. 0324
3. 8869
7044519
CHEV74350TRUCKALLCALI FM/ T
75
42
7037851
CH
3. 0324
3. 8869
7044520
CHEV74454SUBURBANA/ TCALI F
75
42
7037851
DH
3. 0324
3. 8869
7044526
CHEV74400CHVLCA
73
42
7037851
DL
2. 7999
3. 6545
7044527
CHEV74400C20SUBURBANALLTRANS
72
40
7037851
DL
2. 8149
3. 5406
7044568
PONT74350ATCALI FORNI A
72
43
7029529
DB
2. 6193
3. 5406
7045183
OLDS75350CUTLASSA/ TA/ CFED
67
41
7040498
CV
2. 2054
2. 9947
7045200
Chev75454ATChev el l e/ Mont e
76
43
7041477
CJ
3. 0843
4. 0055
7045202
CHEV75CAMARO &BLAZER 350FEDA/ T
72
46
17052057
CH
2. 4096
3. 5406
7045203
CHEV75CAMARO &BLAZER 350FEDM/ T
72
46
17052057
CH
2. 4096
3. 5406
7045206
CHEV75350NOVAFEDA/ T
72
46
17052057
CH
2. 4096
3. 5406
7045207
CHEV75350NOVAFEDM/ T
72
46
17052057
CH
2. 4096
3. 5406
7045210
CHEV75FEDERALATHI GHPERFVETTE
72
44
17052057
CH
2. 5510
3. 5406
7045211
CHEV75FEDERALMTHI GHPERFVETTE
72
44
17052057
CH
2. 5510
3. 5406
7045212
CHEV454C10,20,30P30MTRHM FED
68
33
7037298
DH
2. 7764
3. 1008
7045213
CHEV&GMCT r uc k7576NonCA,HD
68
32
7029862
CP
2. 8274
3. 1008
7045214
CHEV350TRUCKG20,30FED
71
39
7037305
CP
2. 7646
3. 4283
7045215
CHEV350P30MOTORHOMEFED
71
39
7037305
CP
2. 7646
3. 4283
7045216
CHEV&GMCT r uc k ,7576RegChas s i s
68
32
7029862
CP
2. 8274
3. 1008
7045217
CHEV454P30REG CHASSI SFED
68
33
7037298
DH
2. 7764
3. 1008
7045218
CHEV75350G10VANA/ T
71
44
7041459
CH
2. 4387
3. 4283
7045219
CHEV75350G10VANM/ T
71
44
7041459
CH
2. 4387
3. 4283
7045220
CHEV454TRUCKC10FED
70
38
7041477
CJ
2. 7143
3. 3175
7045221
CHEV75454CHVL&MONTECNDAA/ T
70
38
7041477
CJ
2. 7143
3. 3175
7045222
CHEV75ATALLVETTE
72
46
17052057
CH
2. 4096
3. 5406
7045223
CHEV75FEDERALMTVETTE
72
46
17052057
CH
2. 4096
3. 5406
7045224
CHEV75CHVL,MONTE400CAA/ T
71
46
7037851
DL
2. 2973
3. 4283
7045225
CHEV7576400TRUCKG20,30FED
71
36
7037305
DL
2. 9413
3. 4283
7045228
CHEV75400FEDERALATChev el l e/ Mont e
71
47
17052057
DL
2. 2242
3. 4283
7045229
CHEV75400MTT r uc kK10,20FED
69
36
7029862
DL
2. 7214
3. 2084
7045294
CHEV75350CHVL&MONTECNDAA/ T
72
46
17052057
CH
2. 4096
3. 5406
7045502
CHEV75CAMARO 350CAA/ T
72
46
17052057
CH
2. 4096
3. 5406
7045503
CHEV75CAMARO 350CAM/ T
72
46
17052057
CH
2. 4096
3. 5406
7045504
CHEV75350ATCALI FORNI A
72
46
7037851
CH
2. 4096
3. 5406
7045506
CHEV75350NOVACAA/ T
72
46
17052057
CH
2. 4096
3. 5406
7045507
CHEV75350NOVACAM/ T
72
46
17052057
CH
2. 4096
3. 5406
7045512
CHEV454C10,20,30,P30MTRHM CA
67
30
7036019
CJ
2. 8188
2. 9947
7045517
CHEV454P30EXCMTRHM CA
67
30
7036019
CJ
2. 8188
2. 9947
7045583
CHEV&GMCT r uc k ,7577Cal i f .
73
42
7029862
CP
2. 7999
3. 6545
7045584
CHEV350TRUCKG20,30CALI F
72
40
7037305
CP
2. 8149
3. 5406
7045585
CHEV350P30MOTORHOMECALI F
72
40
7037305
CP
2. 8149
3. 5406
7045586
CHEV&GMCT r uc k ,7577RegChas s i sCA
73
42
7029862
CP
2. 7999
3. 6545
7045588
CHEV7576400TRUCKG20,30CALI F
73
38
7037305
DL
3. 0513
3. 6545
7045589
CHEV7576400TRUCKK10,20CALI F
73
33
7037305
DL
3. 3301
3. 6545
17054918
CHEVSR72VETTE,NOVA,CAM 402454
77
48
7036019
CM
2. 8471
4. 1257
17054919
CHEVSERVREPL73VETTE,NOVA,CAM
74
44
7036019
DA
2. 7803
3. 7699
17054920
CHEVSERVRE REPL7435 0VETTE,CAM, CHVL
75
46
7029529
CH
2. 7560
3. 8869
17054923
GMCSERVREPL71350ALL
74
39
7036019
BA
3. 1062
3. 7699
17054926
GM T r uc kSERVREPL7475454ALL
68
32
7037298
DH
2. 8274
3. 1008
17054927
CHEV72350Sr vRepl Vet t e,Camar o,GMC
74
43
7036019
DA
2. 8486
3. 7699
17054928
CHEV73350TRUCKALLTRANS
73
42
7029862
DA
2. 7999
3. 6545
17054929
CHEV74350400CHVL,VETTE,MONTE
73
42
7037851
CH
2. 7999
3. 6545
17055038
CHEV75Ser vRepl Tr uc k ,Vet t e,Nov a
72
46
17052057
CH
2. 4096
3. 5406
17056200
CHEV76454FULLSI ZEA/ T
79
46
7041477
DR
3. 2398
4. 3707
17056202
CHEV76350CAMARO FEDA/ T
77
48
17052057
CH
2. 8471
4. 1257
17056203
CHEV76350CAMARO FEDM/ T
77
48
17052057
CH
2. 8471
4. 1257
17056206
CHEV76Vet t e&Nov aA/ T
77
48
17052057
CH
2. 8471
4. 1257
17056207
CHEV76Vet t e&Nov aM/ T
77
48
17052057
CH
2. 8471
4. 1257
17056208
CHEV76350TRUCKC10A/ TFED
77
48
17052057
CH
2. 8471
4. 1257
17056209
CHEV76350TRUCKC10M/ TFED
77
48
17052057
CH
2. 8471
4. 1257
17056210
CHEV76FEDERALATVETTEHI GHPERF
77
51
17052057
CH
2. 6138
4. 1257
17056211
CHEV76FEDERALMTVETTEHI GHPERF
77
51
17052057
CH
2. 6138
4. 1257
17056212
CHEV7677454MOTORHOME
71
32
7036019
DL
3. 1549
3. 4283
17056217
CHEV7677454P30REGULARCHASSI S
71
32
7036019
DL
3. 1549
3. 4283
17056218
CHEV76350G10VANA/ TFED
76
47
17052057
CH
2. 8015
4. 0055
17056219
CHEV76350G10VANM/ TFED
76
47
17052057
CH
2. 8015
4. 0055
17056221
CHEV76FEDHDTRUCK454AUTO
77
45
7041477
DR
3. 0662
4. 1257
17056226
CEHV76FEDERALATA/ CVETTEHIPERF
77
51
17052057
CH
2. 6138
4. 1257
17056228
CHEV76MONTECARLO,CHVL400AT
77
48
17052057
DP
2. 8471
4. 1257
17056281
CHEV7677CHVL,CAMARO CANADA
77
48
17052057
CH
2. 8471
4. 1257
17056282
CHEV76NOVA,VETTECANADA
77
48
17052057
CH
2. 8471
4. 1257
17056283
CHEV76350TRUCKC10CANADANO CAT
77
48
17052057
CH
2. 8471
4. 1257
17056284
CHEV76350G10VANCANADANO CAT
76
47
17052057
CH
2. 8015
4. 0055
17056286
CHEV76454A/ TCANADA
77
45
7041477
DR
3. 0662
4. 1257
17056502
CHEV76350CAMARO CAA/ T
77
48
17052057
CH
2. 8471
4. 1257
17056503
CHEV76350CAMARO CAM/ T
77
48
7037851
CH
2. 8471
4. 1257
17056506
CHEV76Vet t e&Nov aA/ TCal i f
77
48
17052057
CH
2. 8471
4. 1257
17056507
CHEV76Vet t e&Nov aM/ TCal i f
77
48
7037851
CH
2. 8471
4. 1257
17056508
CHEV76350TRUCKC10A/ TCALI F
77
48
7037851
CH
2. 8471
4. 1257
17056509
CHEV76350TRUCKC10M/ TCALI F
77
48
7037851
CH
2. 8471
4. 1257
17056512
CHEV76CALI FHDTRUCK454AT&MT
72
38
7036019
DR
2. 9374
3. 5406
17056517
CHEV76FEDP30TRUCK454AUTO
72
38
7036019
DR
2. 9374
3. 5406
17056518
CHEV76350G10VANA/ TCALI F
76
47
7037851
CH
2. 8015
4. 0055
17056519
CHEV76350G10VANM/ TCALI F
76
47
7037851
CH
2. 8015
4. 0055
17057202
CHEV77CHVL,MONTE,VETTE350AUTO
77
52
7029529
CH
2. 5329
4. 1257
17057203
CHEV77FEDERALMTNONA/ CVETTE
77
52
7029529
CH
2. 5329
4. 1257
17057204
CHEV77CHVL,VETTE350AUTO A/ C
77
52
7029529
CH
2. 5329
4. 1257
17057209
CHEV77350C10TRUCKM/ T
77
52
7029529
CH
2. 5329
4. 1257
17057210
CHEV77HI GHPERFNONA/ CVETTE
77
53
17052057
CH
2. 4504
4. 1257
17057211
CHEV77HI GHPERFA/ C&NONA/ CVETTE
77
53
17052057
CH
2. 4504
4. 1257
17057213
CHEV77HDT r uc k350CKG102030Fed
64
40
7036019
DP
1. 9604
2. 6861
17057215
CHEV77HDP30Mot orHome350Feder al
64
40
7036019
DP
1. 9604
2. 6861
17057216
CHEV77HDP30ConvChas s i s350Fed
64
40
7036019
DP
1. 9604
2. 6861
17057218
CHEV77350G10VANFEDNO A/ C,A/ T
77
52
7029529
CH
2. 5329
4. 1257
17057219
CHEV77350G10VANFEDM/ T
77
52
7029529
CH
2. 5329
4. 1257
17057222
CHEV77350G10VANFEDA/ CA/ T
77
52
7029529
CH
2. 5329
4. 1257
17057228
CHEV77FEDERALA/ CVETTE
77
53
17052057
CH
2. 4504
4. 1257
17057229
CHEV77400HDTRUCK,FEDA/ T( 4MV)
64
39
7036019
DG
2. 0224
2. 6861
17057234
CAD77LATE425ALLEXCEPTELDO
72
52
7044432
DU
1. 9478
3. 5406
17057235
CAD77LATE425ELDO FEDERAL
70
48
7044432
DU
2. 0389
3. 3175
17057255
PONT77403FEDBBODYA/ T( EARL Y)
73
49
7045195
CV
2. 2996
3. 6545
17057256
PONT77403FEDBBODYA/ T ,A/ C( EARL Y)
73
49
7045195
CV
2. 2996
3. 6545
17057263
PONT77400FED' BI RDM/ T
70
42
7044068
DB
2. 4630
3. 3175
17057266
PONT77400FED' BI RDHIPERFA/ T
71
45
7044068
DB
2. 3688
3. 4283
17057274* PONT77400FEDLEMANS,GP,' BI RD," B"
71
45
7044068
DB
2. 3688
3. 4283
17057502
CHEV77350NONA/ CAUTO CALI F
72
41
7036019
CH
2. 7512
3. 5406
17057503
CHEV77350NONA/ CM/ TCALI F
77
52
7037851
CH
2. 5329
4. 1257
17057504
CHEV77350VETTE,NOVAACAUTO CALI F
72
41
7036019
CH
2. 7512
3. 5406
17057514
CHEV77HDG2030Van350Cal i f
73
39
7036019
CP
2. 9908
3. 6545
17057518
CHEV77350G10VANCANO A/ CA/ T
72
41
7036019
CH
2. 7512
3. 5406
17057519
CHEV77350G10VANCAM/ T
77
52
7029529
CH
2. 5329
4. 1257
17057522
CHEV77350G10VANCAA/ CA/ T
72
41
7036019
CH
2. 7512
3. 5406
17057525
CHEV77400HDTRUCK,G,CAA/ T( 4MV)
73
38
7037305
DP
3. 0513
3. 6545
17057529
CHEV77400HDTRUCK,G,CAA/ T( 4MV)
72
40
7036019
DP
2. 8149
3. 5406
17057533
CAD77LATE425ELDO CALI F
70
39
7044432
DS
2. 6539
3. 3175
17057582
CHEV77350HIAL TNONA/ C
72
41
7036019
CH
2. 7512
3. 5406
17057584
CHEV77MONTECARLO,HIAL T .A/ C
72
41
7036019
CH
2. 7512
3. 5406
17057586
CHEV77350G10VANHIAL TA/ CA/ T
72
41
7036019
CH
2. 7512
3. 5406
17057588
CHEV77350G10VANHIAL TNO A/ CA/ T
72
41
7036019
CH
2. 7512
3. 5406
17058201
CHEV78350LI GHTTRUCKFEDM/ T
77
52
7029529
CH
2. 5329
4. 1257
17058202
CHEV78VETTE350FEDNO A/ CA/ T
77
52
7029529
CH
2. 5329
4. 1257
17058203
CHEV78FEDVETTEA/ C&NONA/ C4SPD
77
52
7029529
CH
2. 5329
4. 1257
17058204
CHEV78VETTE350FED A/ CA/ T
77
52
7029529
CH
2. 5329
4. 1257
17058210
CHEV78FEDVETTENONA/ CAUTO
77
53
17052057
CH
2. 4504
4. 1257
17058211
CHEV78FEDVETTEH. P.A/ C&NON4SPD
77
53
17052057
CH
2. 4504
4. 1257
17058213
CHEV78GMCHDT r uc k&' 79CanadaHD
63
40
7036019
CP
1. 8606
2. 5863
17058218
CHEV78350G10VANFEDNO A/ C,A/ T
77
52
7029529
CH
2. 5329
4. 1257
17058219
CHEV78350G10VANFEDM/ T
77
52
7029529
CH
2. 5329
4. 1257
17058222
CHEV78350G10VANFEDA/ C,A/ T
77
52
7029529
CH
2. 5329
4. 1257
17058228
CHEV78FEDVETTEH. P.A/ CAUTO
77
53
17052057
CH
2. 4504
4. 1257
17058229
CHEV78400454HDTRUCKFEDA/ T
64
39
7036019
DG
2. 0224
2. 6861
17058250
BUI CK,OLDS403NONA/ CFED
73
55
7044432
CV
1. 8096
3. 6545
17058253
BUI CK,OLDS403A/ CFED
73
55
7044432
CV
1. 8096
3. 6545
17058258
BUI CK,OLDS403A/ CHIAL T
70
50
17051705
CV
1. 8850
3. 3175
17058282
CHEV78CANADAZ94CAMARO NO AC
77
52
7029529
CH
2. 5329
4. 1257
17058284
CHEV78CANADAZ94CAMARO AC
77
52
7029529
CH
2. 5329
4. 1257
17058396
SERVI CEREPLACEMENTFOR17057229
64
39
7036019
DG
2. 0224
2. 6861
17058397
SERVI CEREPLACEMENTFOR17058203
77
52
7029529
CH
2. 5329
4. 1257
17058398
SERVI CEREPLACEMENTFOR17058503
73
50
7029529
DR
2. 2219
3. 6545
17058399
SERVI CEREPLACEMENTFOR17057203
77
52
7029529
CH
2. 5329
4. 1257
17058460
SERVI CEREPLACEMENTFOR17058204
77
52
7029529
CH
2. 5329
4. 1257
17058463
SERVI CEREPLACEMENTFOR17057504
72
41
7036019
CH
2. 7512
3. 5406
17058464
SERVI CEREPLACEMENTFOR17057582
72
41
7036019
CH
2. 7512
3. 5406
17058465
SERVI CEREPLACEMENTFOR17058210
77
53
17052057
CH
2. 4504
4. 1257
17058466
SERVI CEREPLACEMENTFOR17058506
73
49
7029529
DR
2. 2996
3. 6545
17058467
SERVI CEREPLACEMENTFOR17058520
72
46
7036019
DR
2. 4096
3. 5406
17058468
SERVI CEREPLACEMENTFOR17058524
68
42
7029529
DR
2. 2462
3. 1008
17058469
SERVI CEREPLACEMENTFOR17059240
67
47
17055329
CP
1. 7907
2. 9947
17058470
SERVI CEREPLACEMENTFOR17059243
67
47
17055329
CP
1. 7907
2. 9947
17058501
CHEV78454C20TRUCKCALI FM/ T
72
46
7036019
DR
2. 4096
3. 5406
17058502
CHEV78VETTE350CANO A/ CA/ T
71
41
7036019
CH
2. 6389
3. 4283
17058503
CHEV78350LI GHTTRUCKCALI FM/ T
73
50
7029529
DR
2. 2219
3. 6545
17058504
CHEV78VETTE350CA A/ CA/ T
71
41
7036019
CH
2. 6389
3. 4283
17058506
CHEV78350LI GHTTRUCKCALI FA/ T
73
49
7029529
DR
2. 2996
3. 6545
17058508
CHEV78350LI GHTTRUCKCALI FA/ CA/ T
73
49
7029529
DR
2. 2996
3. 6545
17058512
CHEV78454C30TRUCKCALI FM/ T&A/ T
71
35
7036019
DR
2. 9971
3. 4283
17058518
CHEV78350G10VANCALI FA/ T
73
49
7029529
DR
2. 2996
3. 6545
17058519
CHEV78350G10VANCALI FM/ T
73
50
7029529
DR
2. 2219
3. 6545
17058520
CHEV78454C10FEDTRUCKAC,A/ T
72
46
7036019
DR
2. 4096
3. 5406
17058521
CHEV78454C10FEDTRUCKNONAC,A/ T
72
46
7036019
DR
2. 4096
3. 5406
17058522
CHEV78350G10VANCALI FA/ C,A/ T
73
49
7029529
DR
2. 2996
3. 6545
17058523
CHEV78400CALI FG20/ 30VANNO AC
68
42
7029529
DR
2. 2462
3. 1008
17058524
CHEV78400CALI FG20/ 30VANAC
68
42
7029529
DR
2. 2462
3. 1008
17058527
CHEV78400CAK10/ 20SUBP/ UNO AC
68
42
7029529
DR
2. 2462
3. 1008
17058528
CHEV78400CAK10/ 20SUBP/ UAC
68
42
7029529
DR
2. 2462
3. 1008
17058553
BUI CK,OLDS,PONT403CALI F
74
52
17051705
CV
2. 1771
3. 7699
17058582
CHEV78VETTE350HIAL T .NO A/ CA/ T
71
41
7036019
CH
2. 6389
3. 4283
17058584
CHEV78VETTE350HIAL T .A/ CA/ T
71
41
7036019
CH
2. 6389
3. 4283
17059203
CHEV79FEDVETTEA/ C&NON4SPD
72
40
7036019
CH
2. 8149
3. 5406
17059205
CHEV79350TRUCK,NONA/ C,AUTO
72
52
7036019
DP
1. 9478
3. 5406
17059207
CHEV79305ELCAMI NO M/ T
72
40
7036019
CH
2. 8149
3. 5406
17059210
CHEV79VETTEL 82H. P.NONA/ CAUTO
77
53
17052057
CH
2. 4504
4. 1257
17059211
CHEV79VETTEL 82H. P.A/ C&NON4SPD
77
53
17052057
CH
2. 4504
4. 1257
17059212
CHEV79454TRUCK,ALLFED
72
52
7036019
DH
1. 9478
3. 5406
17059216
CHEV79305350CAMARO A/ C
72
40
7036019
CH
2. 8149
3. 5406
17059217
CHEV79305350CAMARO NO A/ C
72
40
7036019
CH
2. 8149
3. 5406
17059218
CHEV79305MALI BU2. 29AXLENO AC
71
40
7036019
CH
2. 7026
3. 4283
17059222
CHEV79305MALI BU2. 29AXLEAC
71
40
7036019
CH
2. 7026
3. 4283
17059228
CHEV79VETTEL 82H. P.A/ CAUTO
77
53
17052057
CH
2. 4504
4. 1257
17059240
BUI CK79231LESABREFEDTURBO A/ T
67
47
17055329
CP
1. 7907
2. 9947
17059242
BUI CK79231RI VI ERAFEDTURBO AC,A/ T
67
47
17055329
CP
1. 7907
2. 9947
17059243
BUI CK79231CENT ,REGALFEDTURBO A/ T
67
47
17055329
CP
1. 7907
2. 9947
17059253
PONT79403OLDSENGI NEF' BI RDACAT
73
55
17051705
CV
1. 8096
3. 6545
17059282
CHEV79CANADAZ94CAMARO NO A/ C
77
51
7029529
CH
2. 6138
4. 1257
17059284
CHEV79CANADAZ94CAMARO A/ C
77
51
7029529
CH
2. 6138
4. 1257
17059298
VOL VO PENT A,MARI NE,305
69
40
CJ
2. 4826
3. 2084
17059501
CHEV79454C20/ 25TRUCK,MT
72
46
7036019
DP
2. 4096
3. 5406
17059504
79SKYLARK,NOVA,CAMARO VETTECA
72
40
7037305
CH
2. 8149
3. 5406
17059506
CHEV79350TRUCK,NO A/ C,AUTO,CALI F
73
51
7029529
DP
2. 1426
3. 6545
17059508
CHEV79350TRUCK,A/ C,AUTO,CALI F
73
51
7029529
DP
2. 1426
3. 6545
17059509
CHEV79350TRUCK,NO AC,AUTO,HIAL T
72
50
7029529
DP
2. 1080
3. 5406
17059510
CHEV79350TRUCK,A/ C,AUTO,HIAL T
72
50
7029529
DP
2. 1080
3. 5406
17059512
CHEV79454TRUCK,ALLCALI F
72
52
7036019
DH
1. 9478
3. 5406
17059520
CHEV79454TRUCK,FED&CA,AC,AT
72
47
7036019
DP
2. 3366
3. 5406
17059521
CHEV79454TRUCK,FED&CA,NO AC, AT
72
47
7036019
DP
2. 3366
3. 5406
17059582
CHEV79305MALI BUNO A/ C
71
41
7036019
CH
2. 6389
3. 4283
17059582
CHEV79VETTE350HIAL T .NO A/ C
71
41
7036019
CH
2. 6389
3. 4283
17059584
CHEV79305MALI BUA/ C
71
41
7036019
CH
2. 6389
3. 4283
17059584
CHEV79VETTE350HIAL T .A/ C
71
41
7036019
CH
2. 6389
3. 4283
17080201
CHEV80
71
48
7036019
DR
2. 1496
3. 4283
17080202
CHEV80
71
42
7036019
CH
2. 5737
3. 4283
17080204
CHEV80
72
42
7036019
CH
2. 6861
3. 5406
17080205
CHEV80
72
51
7036019
DP
2. 0287
3. 5406
17080206
CHEV80
72
51
7036019
DP
2. 0287
3. 5406
17080207
Chev80VETTEM/ T
71
42
7036019
CH
2. 5737
3. 4283
17080212
CHEV80T r uc k
72
52
7036019
DH
1. 9478
3. 5406
17080213
CHEV80
72
50
7036019
DP
2. 1080
3. 5406
17080215
CHEV80
72
50
7036019
DP
2. 1080
3. 5406
17080224
CHEV80
72
48
7036019
DR
2. 2619
3. 5406
17080228
CHEV80Vet t eL82A/ T
72
41
7036019
CH
2. 7512
3. 5406
?i$ure ," 'eterin$ reas reas of Jet 8 Rod !o#binations
Jet
JetAr ea
Rod
RodAr eaTot alAr ea
0 . 0 60 0. . 0 26 0. 0022965 00282743 0 00053093 0. 0 . 0 60 0. . 0 30 0. 00212058 00282743 0 00070686 6 0. 0 . 0 60 0. . 0 31 0. 00207267 00282743 0 00075477 7 0. 0 . 0 60 0. . 0 32 0. 00202319 00282743 0 00080425 5 0. 0 . 0 60 0. . 0 33 0. 00197213 00282743 0 0008553 3 0. 0 . 0 60 0. . 0 34 0. 00191951 00282743 0 00090792 2 0. 0 . 0 60 0. . 0 35 0. 00186532 00282743 0 00096211 1 0. 0 . 0 60 0. . 0 36 0. 00180956 00282743 0 00101788 8 0. 0 . 0 60 0. . 0 37 0. 00175222 00282743 0 00107521 1 0. 0 . 0 60 0. . 0 38 0. 00169332 00282743 0 00113411 1 0. 0 . 0 60 0. . 0 39 0. 00163284 00282743 0 00119459 9 0. 0 . 0 60 0. . 0 40 0. 0015708 00282743 0 00125664 0. 0 . 0 60 0. . 0 41 0. 00150718 00282743 0 00132025 5 0. 0 . 0 60 0. . 0 42 0. 00144199 00282743 0 00138544 4 0. 0 . 0 60 0. . 0 43 0. 00137523 00282743 0 0014522 2 0. 0 . 0 60 0. . 0 44 0. 0013069 00282743 0 00152053 0. 0 . 0 60 0. . 0 45 0. . 0 01 2 37 00282743 0 00159043 0 0 . 0 60 0. . 0 46 0. 00116553 00282743 0 0016619 9 0. 0 . 0 60 0. . 0 47 0. 00109249 00282743 0 00173494 4 0. 0 . 0 60 0. . 0 48 0. 00101788 00282743 0 00180956 6 0. 0 . 0 60 0. . 0 49 0. 00094169 00282743 0 00188574 4 0. 0 . 0 60 0. . 0 50 0. 00086394 00282743 0 0019635 5 0. 0 . 0 61 0. . 0 26 0. 00239154 00292247 0 00053093 3 0. 0 . 0 61 0. . 0 30 0. 00221561 00292247 0 00070686 6 0. 0 . 0 61 0. . 0 31 0. 0021677 00292247 0 00075477 0. 0 . 0 61 0. . 0 32 0. 00211822 00292247 0 00080425 5 0. 0 . 0 61 0. . 0 33 0. 00206717 00292247 0 0008553 3 0. 0 . 0 61 0. . 0 34 0. 00201455 00292247 0 00090792 2 0. 0 . 0 61 0. . 0 35 0. 00196035 00292247 0 00096211 1 0. 0 . 0 61 0. . 0 36 0. 00190459 00292247 0 00101788 8 0. 0 . 0 61 0. . 0 37 0. 00184726 00292247 0 00107521 1 0. 0 . 0 61 0. . 0 38 0. 00178835 00292247 0 00113411 1 0. 0 . 0 61 0. . 0 39 0. 00172788 00292247 0 00119459 9 0. 0 . 0 61 0. . 0 40 0. 00166583 00292247 0 00125664 4 0. 0 . 0 61 0. . 0 41 0. 00160221 00292247 0 00132025 5 0. 0 . 0 61 0. . 0 42 0. 00153702 00292247 0 00138544 4 0. 0 . 0 61 0. . 0 43 0. 00147027 00292247 0 0014522 2 0. 0 . 0 61 0. . 0 44 0. 00140194 00292247 0 00152053 3 0. 0 . 0 61 0. . 0 45 0. 00133204 00292247 0 00159043 3 0. 0 . 0 61 0. . 0 46 0. 00126056 00292247 0 0016619 9 0.
0 . 0 61 0. . 0 47 0. 00118752 00292247 0 00173494 4 0. 0 . 0 61 0. . 0 48 0. 00111291 00292247 0 00180956 6 0. 0 . 0 61 0. . 0 49 0. 00103673 00292247 0 00188574 4 0. 0 . 0 61 0. . 0 50 0. 00095897 00292247 0 0019635 5 0. 0
0 . 0 62 0. . 0 26 0. 00248814 00301907 0 00053093 3 0. 0 . 0 62 0. . 0 30 0. 00231221 00301907 0 00070686 6 0. 0 . 0 62 0. . 0 31 0. 0022643 00301907 0 00075477 0. 0 . 0 62 0. . 0 32 0. 00221482 00301907 0 00080425 5 0. 0 . 0 62 0. . 0 33 0. 00216377 00301907 0 0008553 3 0. 0 . 0 62 0. . 0 34 0. 00211115 00301907 0 00090792 2 0. 0 . 0 62 0. . 0 35 0. 00205696 00301907 0 00096211 1 0. 0 . 0 62 0. . 0 36 0. 00200119 00301907 0 00101788 8 0. 0 . 0 62 0. . 0 37 0. 00194386 00301907 0 00107521 1 0. 0 . 0 62 0. . 0 38 0. 00188496 00301907 0 00113411 1 0. 0 . 0 62 0. . 0 39 0. 00182448 00301907 0 00119459 9 0. 0 . 0 62 0. . 0 40 0. 00176243 00301907 0 00125664 4 0. 0 . 0 62 0. . 0 41 0. 00169882 00301907 0 00132025 5 0. 0 . 0 62 0. . 0 42 0. 00163363 00301907 0 00138544 4 0. 0 . 0 62 0. . 0 43 0. 00156687 00301907 0 0014522 2 0. 0 . 0 62 0. . 0 44 0. 00149854 00301907 0 00152053 3 0. 0 . 0 62 0. . 0 45 0. 00142864 00301907 0 00159043 3 0. 0 . 0 62 0. . 0 46 0. 00135717 00301907 0 0016619 9 0. 0 . 0 62 0. . 0 47 0. 00128413 00301907 0 00173494 4 0. 0 . 0 62 0. . 0 48 0. 00120951 00301907 0 00180956 6 0. 0 . 0 62 0. . 0 49 0. 00113333 00301907 0 00188574 4 0. 0 . 0 62 0. . 0 50 0. 00105558 00301907 0 0019635 5 0. 0 . 0 63 0. . 0 26 0. 00258632 00311725 0 00053093 3 0. 0 . 0 63 0. . 0 30 0. 00241039 00311725 0 00070686 6 0. 0 . 0 63 0. . 0 31 0. 00236248 00311725 0 00075477 7 0. 0 . 0 63 0. . 0 32 0. . 0 02 3 13 00311725 0 00080425 0 0 . 0 63 0. . 0 33 0. 00226195 00311725 0 0008553 3 0. 0 . 0 63 0. . 0 34 0. 00220933 00311725 0 00090792 2 0. 0 . 0 63 0. . 0 35 0. 00215513 00311725 0 00096211 1 0. 0 . 0 63 0. . 0 36 0. 00209937 00311725 0 00101788 8 0. 0 . 0 63 0. . 0 37 0. 00204204 00311725 0 00107521 1 0. 0 . 0 63 0. . 0 38 0. 00198313 00311725 0 00113411 1 0. 0 . 0 63 0. . 0 39 0. 00192265 00311725 0 00119459 9 0. 0 . 0 63 0. . 0 40 0. 00186061 00311725 0 00125664 4 0. 0 . 0 63 0. . 0 41 0. 00179699 00311725 0 00132025 5 0. 0 . 0 63 0. . 0 42 0. 0017318 00311725 0 00138544 0. 0 . 0 63 0. . 0 43 0. 00166504 00311725 0 0014522 2 0. 0 . 0 63 0. . 0 44 0. 00159671 00311725 0 00152053 3 0. 0 . 0 63 0. . 0 45 0. 00152681 00311725 0 00159043 3 0. 0 . 0 63 0. . 0 46 0. 00145534 00311725 0 0016619 9 0.
0 . 0 63 0. . 0 47 0. 0013823 00311725 0 00173494 0. 0 . 0 63 0. . 0 48 0. 00130769 00311725 0 00180956 6 0. 0 . 0 63 0. . 0 49 0. 0012315 00311725 0 00188574 0. 0 . 0 63 0. . 0 50 0. 00115375 00311725 0 0019635 5 0. 0 . 0 64 0. . 0 26 0. 00268606 00321699 0 00053093 3 0. 0 . 0 64 0. . 0 30 0. 00251013 00321699 0 00070686 6 0. 0 . 0 64 0. . 0 31 0. 00246222 00321699 0 00075477 7 0. 0 . 0 64 0. . 0 32 0. 00241274 00321699 0 00080425 5 0. 0 . 0 64 0. . 0 33 0. 00236169 00321699 0 0008553 3 0. 0 . 0 64 0. . 0 34 0. 00230907 00321699 0 00090792 2 0. 0 . 0 64 0. . 0 35 0. 00225488 00321699 0 00096211 1 0. 0 . 0 64 0. . 0 36 0. 00219911 00321699 0 00101788 8 0. 0 . 0 64 0. . 0 37 0. 00214178 00321699 0 00107521 1 0. 0 . 0 64 0. . 0 38 0. 00208288 00321699 0 00113411 1 0. 0 . 0 64 0. . 0 39 0. 0020224 00321699 0 00119459 0. 0 . 0 64 0. . 0 40 0. 00196035 00321699 0 00125664 4 0. 0 . 0 64 0. . 0 41 0. 00189674 00321699 0 00132025 5 0. 0 . 0 64 0. . 0 42 0. 00183155 00321699 0 00138544 4 0. 0 . 0 64 0. . 0 43 0. 00176479 00321699 0 0014522 2 0. 0 . 0 64 0. . 0 44 0. 00169646 00321699 0 00152053 3 0. 0 . 0 64 0. . 0 45 0. 00162656 00321699 0 00159043 3 0. 0 . 0 64 0. . 0 46 0. 00155509 00321699 0 0016619 9 0. 0 . 0 64 0. . 0 47 0. 00148205 00321699 0 00173494 4 0. 0 . 0 64 0. . 0 48 0. 00140743 00321699 0 00180956 6 0. 0 . 0 64 0. . 0 49 0. 00133125 00321699 0 00188574 4 0. 0 . 0 64 0. . 0 50 0. 0012535 00321699 0 0019635 0. 0 . 0 65 0. . 0 26 0. 00278738 00331831 0 00053093 3 0. 0 . 0 65 0. . 0 30 0. 00261145 00331831 0 00070686 6 0. 0 . 0 65 0. . 0 31 0. 00256354 00331831 0 00075477 7 0. 0 . 0 65 0. . 0 32 0. 00251406 00331831 0 00080425 5 0. 0 . 0 65 0. . 0 33 0. 00246301 00331831 0 0008553 3 0. 0 . 0 65 0. . 0 34 0. 00241039 00331831 0 00090792 2 0. 0 . 0 65 0. . 0 35 0. 00235619 00331831 0 00096211 1 0. 0 . 0 65 0. . 0 36 0. 00230043 00331831 0 00101788 8 0. 0 . 0 65 0. . 0 37 0. 0022431 00331831 0 00107521 0. 0 . 0 65 0. . 0 38 0. 00218419 00331831 0 00113411 1 0. 0 . 0 65 0. . 0 39 0. 00212372 00331831 0 00119459 9 0. 0 . 0 65 0. . 0 40 0. 00206167 00331831 0 00125664 4 0. 0 . 0 65 0. . 0 41 0. 00199805 00331831 0 00132025 5 0. 0 . 0 65 0. . 0 42 0. 00193286 00331831 0 00138544 4 0. 0 . 0 65 0. . 0 43 0. 00186611 00331831 0 0014522 2 0. 0 . 0 65 0. . 0 44 0. 00179778 00331831 0 00152053 3 0. 0 . 0 65 0. . 0 45 0. 00172788 00331831 0 00159043 3 0. 0 . 0 65 0. . 0 46 0. 0016564 00331831 0 0016619 0.
0 . 0 65 0. . 0 47 0. 00158336 00331831 0 00173494 4 0. 0 . 0 65 0. . 0 48 0. 00150875 00331831 0 00180956 6 0. 0 . 0 65 0. . 0 49 0. 00143257 00331831 0 00188574 4 0. 0 . 0 65 0. . 0 50 0. 00135481 00331831 0 0019635 5 0. 0 . 0 66 0. . 0 26 0. 00289027 00342119 0 00053093 3 0. 0 . 0 66 0. . 0 30 0. 00271434 00342119 0 00070686 6 0. 0 . 0 66 0. . 0 31 0. 00266643 00342119 0 00075477 7 0. 0 . 0 66 0. . 0 32 0. 00261695 00342119 0 00080425 5 0. 0 . 0 66 0. . 0 33 0. 0025659 00342119 0 0008553 0. 0 . 0 66 0. . 0 34 0. 00251327 00342119 0 00090792 2 0. 0 . 0 66 0. . 0 35 0. 00245908 00342119 0 00096211 1 0. 0 . 0 66 0. . 0 36 0. 00240332 00342119 0 00101788 8 0. 0 . 0 66 0. . 0 37 0. 00234598 00342119 0 00107521 1 0. 0 . 0 66 0. . 0 38 0. 00228708 00342119 0 00113411 1 0. 0 . 0 66 0. . 0 39 0. 0022266 00342119 0 00119459 0. 0 . 0 66 0. . 0 40 0. 00216456 00342119 0 00125664 4 0. 0 . 0 66 0. . 0 41 0. 00210094 00342119 0 00132025 5 0. 0 . 0 66 0. . 0 42 0. 00203575 00342119 0 00138544 4 0. 0 . 0 66 0. . 0 43 0. 00196899 00342119 0 0014522 2 0. 0 . 0 66 0. . 0 44 0. 00190066 00342119 0 00152053 3 0. 0 . 0 66 0. . 0 45 0. 00183076 00342119 0 00159043 3 0. 0 . 0 66 0. . 0 46 0. 00175929 00342119 0 0016619 9 0. 0 . 0 66 0. . 0 47 0. 00168625 00342119 0 00173494 4 0. 0 . 0 66 0. . 0 48 0. 00161164 00342119 0 00180956 6 0. 0 . 0 66 0. . 0 49 0. 00153545 00342119 0 00188574 4 0. 0 . 0 66 0. . 0 50 0. 0014577 00342119 0 0019635 0. 0 . 0 67 0. . 0 26 0. 00299472 00352565 0 00053093 3 0. 0 . 0 67 0. . 0 30 0. 00281879 00352565 0 00070686 6 0. 0 . 0 67 0. . 0 31 0. 00277088 00352565 0 00075477 7 0. 0 . 0 67 0. . 0 32 0. 0027214 00352565 0 00080425 0. 0 . 0 67 0. . 0 33 0. 00267035 00352565 0 0008553 3 0. 0 . 0 67 0. . 0 34 0. 00261773 00352565 0 00090792 2 0. 0 . 0 67 0. . 0 35 0. 00256354 00352565 0 00096211 1 0. 0 . 0 67 0. . 0 36 0. 00250778 00352565 0 00101788 8 0. 0 . 0 67 0. . 0 37 0. 00245044 00352565 0 00107521 1 0. 0 . 0 67 0. . 0 38 0. 00239154 00352565 0 00113411 1 0. 0 . 0 67 0. . 0 39 0. 00233106 00352565 0 00119459 9 0. 0 . 0 67 0. . 0 40 0. 00226902 00352565 0 00125664 4 0. 0 . 0 67 0. . 0 41 0. 0022054 00352565 0 00132025 0. 0 . 0 67 0. . 0 42 0. 00214021 00352565 0 00138544 4 0. 0 . 0 67 0. . 0 43 0. 00207345 00352565 0 0014522 2 0. 0 . 0 67 0. . 0 44 0. 00200512 00352565 0 00152053 3 0. 0 . 0 67 0. . 0 45 0. 00193522 00352565 0 00159043 3 0. 0 . 0 67 0. . 0 46 0. 00186375 00352565 0 0016619 9 0.
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0 . 0 77 0. . 0 41 0. 00333637 00465663 0 00132025 5 0. 0 . 0 77 0. . 0 42 0. 00327118 00465663 0 00138544 4 0. 0 . 0 77 0. . 0 43 0. 00320442 00465663 0 0014522 2 0. 0 . 0 77 0. . 0 44 0. 00313609 00465663 0 00152053 3 0. 0 . 0 77 0. . 0 45 0. 00306619 00465663 0 00159043 3 0. 0 . 0 77 0. . 0 46 0. 00299472 00465663 0 0016619 9 0. 0 . 0 77 0. . 0 47 0. 00292168 00465663 0 00173494 4 0. 0 . 0 77 0. . 0 48 0. 00284707 00465663 0 00180956 6 0. 0 . 0 77 0. . 0 49 0. 00277088 00465663 0 00188574 4 0. 0 . 0 77 0. . 0 50 0. 00269313 00465663 0 0019635 5 0. 0 . 0 77 0. . 0 51 0. 00261381 00465663 0 00204282 2 0. 0 . 0 77 0. . 0 52 0. 00253291 00465663 0 00212372 2 0. 0 . 0 77 0. . 0 53 0. 00245044 00465663 0 00220618 8 0. 0 . 0 77 0. . 0 54 0. 0023664 00465663 0 00229022 0. 0 . 0 77 0. . 0 55 0. 0022808 00465663 0 00237583 0. 0 . 0 78 0. . 0 26 0. 00424743 00477836 0 00053093 3 0. 0 . 0 78 0. . 0 30 0. 0040715 00477836 0 00070686 0. 0 . 0 78 0. . 0 31 0. 00402359 00477836 0 00075477 7 0. 0 . 0 78 0. . 0 32 0. 00397411 00477836 0 00080425 5 0. 0 . 0 78 0. . 0 33 0. 00392306 00477836 0 0008553 3 0. 0 . 0 78 0. . 0 34 0. 00387044 00477836 0 00090792 2 0. 0 . 0 78 0. . 0 35 0. 00381625 00477836 0 00096211 1 0. 0 . 0 78 0. . 0 36 0. 00376049 00477836 0 00101788 8 0. 0 . 0 78 0. . 0 37 0. 00370315 00477836 0 00107521 1 0. 0 . 0 78 0. . 0 38 0. 00364425 00477836 0 00113411 1 0. 0 . 0 78 0. . 0 39 0. 00358377 00477836 0 00119459 9 0. 0 . 0 78 0. . 0 40 0. 00352173 00477836 0 00125664 4 0. 0 . 0 78 0. . 0 41 0. 00345811 00477836 0 00132025 5 0. 0 . 0 78 0. . 0 42 0. 00339292 00477836 0 00138544 4 0. 0 . 0 78 0. . 0 43 0. 00332616 00477836 0 0014522 2 0. 0 . 0 78 0. . 0 44 0. 00325783 00477836 0 00152053 3 0. 0 . 0 78 0. . 0 45 0. 00318793 00477836 0 00159043 3 0. 0 . 0 78 0. . 0 46 0. 00311646 00477836 0 0016619 9 0. 0 . 0 78 0. . 0 47 0. 00304342 00477836 0 00173494 4 0. 0 . 0 78 0. . 0 48 0. 00296881 00477836 0 00180956 6 0. 0 . 0 78 0. . 0 49 0. 00289262 00477836 0 00188574 4 0. 0 . 0 78 0. . 0 50 0. 00281487 00477836 0 0019635 5 0. 0 . 0 78 0. . 0 51 0. 00273554 00477836 0 00204282 2 0. 0 . 0 78 0. . 0 52 0. 00265465 00477836 0 00212372 2 0. 0 . 0 78 0. . 0 53 0. 00257218 00477836 0 00220618 8 0. 0 . 0 78 0. . 0 54 0. 00248814 00477836 0 00229022 2 0. 0 . 0 78 0. . 0 55 0. 00240253 00477836 0 00237583 3 0. 0 . 0 79 0. . 0 26 0. 00437074 00490167 0 00053093 3 0. 0 . 0 79 0. . 0 30 0. 00419481 00490167 0 00070686 6 0.
0 . 0 79 0. . 0 31 0. 0041469 00490167 0 00075477 0. 0 . 0 79 0. . 0 32 0. 00409742 00490167 0 00080425 5 0. 0 . 0 79 0. . 0 33 0. 00404637 00490167 0 0008553 3 0. 0 . 0 79 0. . 0 34 0. 00399375 00490167 0 00090792 2 0. 0 . 0 79 0. . 0 35 0. 00393956 00490167 0 00096211 1 0. 0 . 0 79 0. . 0 36 0. 00388379 00490167 0 00101788 8 0. 0 . 0 79 0. . 0 37 0. 00382646 00490167 0 00107521 1 0. 0 . 0 79 0. . 0 38 0. 00376755 00490167 0 00113411 1 0. 0 . 0 79 0. . 0 39 0. 00370708 00490167 0 00119459 9 0. 0 . 0 79 0. . 0 40 0. 00364503 00490167 0 00125664 4 0. 0 . 0 79 0. . 0 41 0. 00358142 00490167 0 00132025 5 0. 0 . 0 79 0. . 0 42 0. 00351623 00490167 0 00138544 4 0. 0 . 0 79 0. . 0 43 0. 00344947 00490167 0 0014522 2 0. 0 . 0 79 0. . 0 44 0. 00338114 00490167 0 00152053 3 0. 0 . 0 79 0. . 0 45 0. 00331124 00490167 0 00159043 3 0. 0 . 0 79 0. . 0 46 0. 00323977 00490167 0 0016619 9 0. 0 . 0 79 0. . 0 47 0. 00316673 00490167 0 00173494 4 0. 0 . 0 79 0. . 0 48 0. 00309211 00490167 0 00180956 6 0. 0 . 0 79 0. . 0 49 0. 00301593 00490167 0 00188574 4 0. 0 . 0 79 0. . 0 50 0. 00293817 00490167 0 0019635 5 0. 0 . 0 79 0. . 0 51 0. 00285885 00490167 0 00204282 2 0. 0 . 0 79 0. . 0 52 0. 00277795 00490167 0 00212372 2 0. 0 . 0 79 0. . 0 53 0. 00269549 00490167 0 00220618 8 0. 0 . 0 79 0. . 0 54 0. 00261145 00490167 0 00229022 2 0. 0 . 0 79 0. . 0 55 0. 00252584 00490167 0 00237583 3 0. 0 . 0 80 0. . 0 26 0. 00449562 00502655 0 00053093 3 0. 0 . 0 80 0. . 0 30 0. 00431969 00502655 0 00070686 6 0. 0 . 0 80 0. . 0 31 0. 00427178 00502655 0 00075477 7 0. 0 . 0 80 0. . 0 32 0. 0042223 00502655 0 00080425 0. 0 . 0 80 0. . 0 33 0. 00417125 00502655 0 0008553 3 0. 0 . 0 80 0. . 0 34 0. 00411863 00502655 0 00090792 2 0. 0 . 0 80 0. . 0 35 0. 00406444 00502655 0 00096211 1 0. 0 . 0 80 0. . 0 36 0. 00400867 00502655 0 00101788 8 0. 0 . 0 80 0. . 0 37 0. 00395134 00502655 0 00107521 1 0. 0 . 0 80 0. . 0 38 0. 00389243 00502655 0 00113411 1 0. 0 . 0 80 0. . 0 39 0. 00383196 00502655 0 00119459 9 0. 0 . 0 80 0. . 0 40 0. 00376991 00502655 0 00125664 4 0. 0 . 0 80 0. . 0 41 0. 00370629 00502655 0 00132025 5 0. 0 . 0 80 0. . 0 42 0. 00364111 00502655 0 00138544 4 0. 0 . 0 80 0. . 0 43 0. 00357435 00502655 0 0014522 2 0. 0 . 0 80 0. . 0 44 0. 00350602 00502655 0 00152053 3 0. 0 . 0 80 0. . 0 45 0. 00343612 00502655 0 00159043 3 0. 0 . 0 80 0. . 0 46 0. 00336465 00502655 0 0016619 9 0. 0 . 0 80 0. . 0 47 0. 0032916 00502655 0 00173494 0. 0 . 0 80 0. . 0 48 0. 00321699 00502655 0 00180956 6 0.
0 . 0 80 0. . 0 49 0. 00314081 00502655 0 00188574 4 0. 0 . 0 80 0. . 0 50 0. 00306305 00502655 0 0019635 5 0. 0 . 0 80 0. . 0 51 0. 00298373 00502655 0 00204282 2 0. 0 . 0 80 0. . 0 52 0. 00290283 00502655 0 00212372 2 0. 0 . 0 80 0. . 0 53 0. 00282036 00502655 0 00220618 8 0. 0 . 0 80 0. . 0 54 0. 00273633 00502655 0 00229022 2 0. 0 . 0 80 0. . 0 55 0. 00265072 00502655 0 00237583 3 0.
?i$ure " %econdar4 'eterin$ Rods @isted @isted Rich to @ean
!ode 3= 3 +V + 3P +; +> C +C +G +* 7V 33 3C 3G 3< 3 3 3* 3? 3A 7 * ; 3, 3L 3@ , P +7 7+ 7< 7> = , ,7 3> ) +W ,+ ,C ,G , 7 7 7L 7?
1AN E0H0E2H E0H2F 1E0DHE1 E0H2FD E0HE/1D E0H0/FD 1E0FDD1/ 1E0FF2 E0HHEEF E0H/F12 E0H//0 1E0F0221 E0FH E0HF E0HH00 E0H/22 E0F1D E0D0EE E0E2F E0EEHH E0/0H E0H0EDE E0H20H E0HFE/0 E0HF/H0 E0HF2H E0HEE E0EE E0DDE1 E0HEE1 E0HD00H E0HD010 E0EE2 E0/12 E0DFF E0HFE/1 E0HF/H 1E0/10 1E0/001 E0H0E2F E0HF2 1E0EF2D/ 1E0/1/E/ 1E0/1//0 1E0/1//1 1E0/2H0 E0D2/ E010H E0D/0 E0/1
Dia of Ti 0.000 0.000 0.000 0.00 0.00 0.020 0.0E 0.0E 0.0H0 0.0H0 0.0H0 0.0 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H00 0.0H1 0.0H1 0.0H1 0.0H1 0.0HH 0.0HH 0.0HF0 0.0F0 0.0F0 0.0F0 0.0F0 0.0FH 0.0FHE 0.0FF0 0.0FF0 0.0FDE 0.0FDE 0.0FDE 0.0FDE 0.0FDE 0.0FE0 0.0FE0 0.0FE0 0.0FE0
Ti @en$th ; ; L * * "ndicates a!ailable from G* * ;J;hort * *J*edium * LJLong * * Ede2broc5 Rods * 1F0 ; 1F2 L L 1FH ; , 1F1 ; 7P 1F * * ; ; * ; * * ; * ; ; ; ; L * * ; * L L L ; ; ; ; ; * ; ; * * ; ; *
7) 7= 7P 7W 37 3W + < @ ? V +) += ,, 3+ +< 3 +@ 3T , + 7T L ,< +L +? 7@ 3V +3 +T 7; G T +A +P +, 3) 7A ,3 3; W + ++
E01E1 E01/2 E0/0 E0// E0HE E0H200 E0H2E1 E0HFEE E0HF/H1 E0HF/H2 E0HF/F 1E0FDF 1E0D21E0 1E0/1/E E0HDF E0H/2 E0H00 1E0FE0 E0H0D01 1E0/10F E0H/0/ E0DF/ E0HFE/2 1E0/1//2 E0H//2 1E0FF1 E0H20 E0H0EE E0HE/0D 1E0FDDF1 E0HFEE/ E0HFEE/ E0HF/ 1E0D2H2 1E0EH2DD E0H/02 E0/10 E01H 1E0/0HDE E0/11 E0HF/D E0H/1 E0H/01
0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE0 0.0FE 0.0F/0 0.0F/0 0.0F/H 0.0F/H 0.0D00 0.0D1 0.0DHE 0.0DE0 0.0DE0 0.0D/D 0.0D0 0.0D0 0.0E00 0.0E00 0.0E00 0.0E00 0.0EEE 0.0EEE 0.0EEE 0.0/EH 0.0/EH 0.0/EE 0.000 0.00/ 0.0HE 0.0F0 0.0F0 0.0E 0.10F0
; * L L ; L L ; ; ; L ; ; * * * ; ; * * ; L L ; ; ; ; ; ; * * * * L L * L * L L L L L
Techn chnica2 ica2 1rocedu 1rocedure re *+"
How to re#o re#ove ve the the irhor irhorn n (the (the 9T 9To:) off off of a Q-Jet Q-Jet
To pop the top off a Q-et# proceed as follows9 1. )emo!e the air cleaner cleaner stud. 2. >sing a hammer and a small pin punch or a small finish nail# tap the roll pin holding the accelerator pump le!er to the top of the carb in towards the cho%e horn wall. +onXt tap the roll pin all the way up against the wall - lea!e ust a slight gap so you can later get a screwdri!er blade in behind it to pry it bac% again. )emo!e the accel pump le!er. le!er. . )emo!e the single screw holding the secondary rod hanger to the top of the carb and remo!e the hanger with the secondary rods. H. )emo!e the cho%e cho%e connecting rod. There are 2 types9 Bne type has a clip clip holding it to the cho%e le!er. le!er. )emo!e the clip# clip# disengage the rod from the upper le!er# then twistIrotate twistIrotate the rod to disengage it from the lower le!er inside the carb. Later model carbs ha!e a single screw holding the upper le!er to the cho%e shaft. Bn this type# remo!e the screw# screw# remo!e the le!er# and and remo!e the cho%e rod by twistingIrotating twistingIrotating it to release it from the lower le!er inside the carb. F. )emo!e the 2 1I2Y head bolts bolts at the front of the carb. carb. D. )emo!e the top attach attach screws9 Two Two long screws in the !ery bac%R a screw on either either side of the secondary secondary air!al!esR two screws screws ust forward forward of the secondary air!al!esR air!al!esR two two screws ust inside inside the cho%e air air horn right at at each primary discharge no''le# no''le# and a single single screw center front. "f the carb has the stoc% screws in it# the two screws inside the air horn are designed to be too big to drop down into the inta%e manifold. manifold. 3ut many aftermer%et aftermer%et screws can# in fact# drop drop through the carb and go into the inta%e. inta%e. Bnce you ha!e loosned these two screws# use a pair of needle nosed pliers to carefully lift them out and ma%e sure they donXt drop. E. Lift the top of the carb carb straight up until it clears clears the accelerator pump pump and until the air bleed tubes clear clear the gas%et. "f you ha!e a pre-8EF Q-et with a cho%e-pulloff cho%e-pulloff attached attached to the float float bowl of the carb# coc% the top top o!er to the side to disengage disengage the secondary air!al!e rod. /. )emo!e the gas%et by carefully freeing it from the power pistonIprimary pistonIprimary metering rod hanger. hanger. . )emo!e the accelerator pump. 10. )emo!e the power pistonIprimary pistonIprimary metering rod hanger by pushing it down against its spring pressure and Yflic%ingY it off your fingernail so it pops up. 7 couple couple of flic%s will disengage the loc%ing collar from the casting# casting# and the assembly can be remo!ed. 11. )emo!e the phenolic float bowl filler. 12. )emo!e the float and needle needle as an assembly. assembly. 1. )emo!e the main ets. ets. The rods and the ets are stamped with their si'es# but you may ha!e to clean them and use a magnifying glass to see the stampings. ;ome commercially rebuild carbs use 4generic6 ets and rods with no si'e mar%ings. Bnly tric% for re-assembly9 re-assembly9 1. Ahen installing the power piston# ta%e care care to fish around until the rods drop down into the ets and the power piston wor%s smoothly. smoothly. Gently push the piston nylon nylon loc%ing collar bac% into the carb carb casting. "X!e seen people not get the rods into into the ets# and simply smash the top of the carb down onto the pistonIrod assembly. Bb!iously# Bb!iously# this will bend the rods. Bnce you ha!e the top bac% on# installing the cho%e lin%age rod is considered the only Ytric%yY part. There is a short le!er arm down inside the carb# and this arm has a hole in its end. This arm is !ery easy to see when you ha!e the top off the carb# so " recommend that no!ices ta%e a loo% at it and its orientationIfunction while while they ha!e the top off the carb. Aith the top off# off# ta%e the cho%e rod and practice installingIengaging installingIengaging it it in this lower lower le!er until until you get the %nac% %nac% of rotating the rod slightly slightly to engage it in in the hole in the le!er. Bnce you ha!e the top bac% on ta%ing care not to o!ertighten screws and bolts# acti!ate the cho%e lin%age on the outside of the carb to mo!e this le!er arm to its furthest YupY position. Pou can ust barely see it if you loo% down the carb. @ow# insert the cho%e rod down into the carb# with the rod rotated slightly. slightly. ,ngage the hole in the le!er arm at this angle# and once youX!e hoo%ed the arm# rotate the rod to fully engage it. "nstall the accelerator accelerator pump le!er to the top of the carb. "nsert a finish nail or a small pin punch through the roll pin hole to assure that itXs aligned# and then use a small screwdri!er to pry the roll pin bac% through the le!er. "nstall the secondary metering rods with the hanger. @BT,9 "f "f youXre going to be doing doing se!eral et changes# you do not not need to attach attach the cho%e lin%age lin%age rod to run the car. Lea!e the rod off until youXre complete.
Techn chnica2 ica2 1rocedu 1rocedure re *,"
How to d3ust d3ust a Q-Jet Q-Jet d3ust d3ustab2e ab2e 1ower 1ower 1iston 1iston
To adust a Q-et with an adustable ?ower ?iston# proceed as follows9 The Q-et uses a power piston with metering rods to lean out the fuel mi$ture at cruise and at idle# and to richen up the mi$ture at wide open throttle ABT. Ahen engine !acuum is high# the power piston is pulled down into the carb against spring pressure# pressure# and this inserts the 4fat6 part of the primary metering rods into the ets for a lean# crisp# economical economical fuel mi$ture. Ahen engine !acuum is lost# such as occurs under high power settings# the piston pops up from the spring pressure# and the 4s%inny6 part of the primary rod is all that remains in the et. This increases the metering metering area of the et and richens up the fuel mi$ture for good power and performance. ;ome Q-ets ha!e an adustable feature feature on the power piston seated height ( others do not. The factory set the adustable feature feature on each carb specifically# specifically# and there is no 4factory spec6 for a starting point for the piston height ( if someone has changed it# you can not get it bac% to the original original spec. 3ut you can get a !ery good setup as described described here. 3efore adusting the height of the power piston the height of the piston when fully seated in its bore ( i.e. the 4lean6 position of the rods in the ets# it is important to understand a few facts about this s ystem. ,arly he!y Q-ets and some later 3uic%IBldsI?ontia 3uic%IBldsI?ontiacc carbs do not ha!e adustable power piston heights9 The power piston does not ha!e a little 4pin6 stic%ing out the bottom of the piston# and the piston can be pushed deeply into the piston bore so that the 4fat6 part of the metering rod fully engages into the metering area of the ets. This produces the true etIrod metering area we ha!e been tal%ing about in this article# and we use this relationship concept in our tuning and twea%ing procedures. 7fter the first few years of production# )ochester )ochester slightly changed the Q-et power piston design. design. "n order to get the Q-et to idle well on higher-performance higher-performance engines# idle air bleed holes were added to the carb. These holes operate the same as the 4racer8s tric%6 tric%6 of drilling holes in the throttle blades9 blades9 They allow air to bypass the throttle blades blades so that the blades can be adusted to a more 4closed6 position while while maintaining good idle speed and and idle &uality. &uality. This produces !ery crisp crisp off-idle transition. Pou can can see these holes in the float bowl casting when you pop the airhorn off9 "n the forward outboard casting chambers# chambers# there will be a hole about I1D6 diameter in both sides of the carb. These holes connect to air bleed holes in the throttle plate primary throttle bores ust below the throttle blades. Bb!iously# Bb!iously# if you allow more air to bleed into the engine# the mi$ture will lean out. To compensate compensate for this# the carbs with the idle air bleed holes ha!e adustable power power pistons to limit limit how 4deep6 4deep6 the rods are inserted inserted into the ets at idle and light cruise. cruise. 3y not allowing the rods to fully engage their 4fat6 parts into the ets# complete control of idle and light cruise mi$ture can be maintained. Curther# Curther# by ha!ing an adustment feature on the rod engagement depth# it is possible to actually fine-tune and adust cruise mi$ture on a carb without the need to change carb components. This gi!es a carb tuner great opportunity to tune the Q-etN and great opportunity to really screw one up. Bn pre-8EF Q-ets# the power piston height is adusted and set by changing the height of a little spring 4tang6 located between the primary throttle throttle bores in the the throttle plate. plate. There is an adustment adustment screw in the the forward face face of the throttle throttle plate# co!ered co!ered by a sheet metal plug. "f you remo!e the plug# you will see the little screw. screw. ;crewing this adustment adustment 4in6 will raise the metal tang# which pushes the power power piston up rich. rich. ?roblem is# this screw is is almost always always sei'ed and rusted# rusted# and adustment adustment is impossible impossible without twisting the head off the screw. screw. ;o rather than messing with a screw that is li%ely inoperable# inoperable# " find it much easier to adust the piston height by simply bending the metal tang with a small screwdri!er. screwdri!er. caution is appropriate here. *any carb builders including some of the well-%nown commercial commercial rebuilders modify modify and Note9 7 caution eliminate this !ery cool adustable system. They install lead plugs into the idle air bleed holes in the float bowl# and they cut the e$tension pin off the bottom of the power piston. This ma%es adustment of the piston height impossible# and the piston will ride in the full-lean position li%e an early-model early-model carb regardless of how you adust the tang. This does not wor% well in a carb designed for the high-ride power piston. "f you see that the e$tension pin in the bottom of your power piston has been snipped off with a pair of sidecutters# you must replace your power piston and %noc% the lead plugs out of the float bowl before trying to adust the piston height. 7n e$cellent starting point for power piston 4ride height6 is to set the piston so that its inner brass cylinder rides .0206 - .006 abo!e the top inner lip of the plastic retaining collar when the piston is fully seated. seated. This will produce !ery good throttle response response and idle mi$ture screw response on most carbs# and is a great starting point for your tuning. Pou can measure# with a pair of calipers# calipers# how much the piston height needs to change in order to hit this number. ?ull the float bowl off the throttle plate plate and measure the height of the tang abo!e the throttle throttle plate surface. 3end the tang the amount needed needed to ma%e the change. ?ut the bowl bac% onto the throttle throttle plate and re-chec% re-chec% the piston height height when seated. seated.
Later model Q-ets 1EFS most often ha!e an 47?T6 adustment screw 7dustable ?art Throttle located located in a bore ust forward of the power piston. The piston has a tang stic%ing out the forward side that hits this 7?T 7?T aduster to limit the seated seated depth of the piston. 7dust this 7?T 7?T screw to achie!e the .0206 - .006 spec. Pou can ma%e a tool using a piece of 4model railroad tubing6 that you flatten ust a little little to fit the aduster screw. screw. This tool will allow you to adust the the 7?T 7?T from outside the carb carb if you %noc% the the little aluminum aluminum plug out of the airhorn abo!e the 7?T screw9 Pou can actually actually fine-tune fine-tune your cruise mi$ture mi$ture by simply simply turning this screw screw once your your carb is assembled and on the car. ;ome 1EFS Q-ets do not ha!e an 7?T adustment screw to limit limit the piston height. )ather# they they were designed for an 4aneroid bellows6 located located in the forward forward passenger side side corner of the carb. This bellows bellows was intended intended as an altitude altitude compensator to to lean the carb at lower atmospheric pressures and to richen it at lower ele!ations. Cew# if if any# bellows were actually installed# and most 4aneroid6 carbs ha!e a solid phenolic bloc% installed in this location location rather than the bellows. This solid bloc% has an adustable metering rod and a et in the bottom of the aneroid bore. 3y adusting the depth of the rod into the et# you are adusting the 7?T the same as on the other carbs. 7gain# you can %noc% the sheet metal plug out of the airhorn abo!e the aneroid adustment screw to access access this in your running car. 7 nominal nominal starting position for the adustment is to run the screw down until it seats against the snap ring. Then turn it 4up6 2 full turns. The more you turn it 4up#6 the richer the carb will run at idle and cruise.
Techni chnica ca22 1roc 1roced edur uree *" *"
How How to %et %et B B a Q-Je Q-Jett !ho5 !ho5ee
The procedure outlined here differs from other " ha!e seen# and is based on my years of e$perience doing this wor% in the &uic%est# least painful# most economical economical way. "t is recogni'ed that other people will ha!e different different methods of doing things# and may disagree with specific methods and procedures that " use.
Overview The )ochester Quadraet uses uses an automatic cho%e system that is actually !ery good# if properly set up and adusted. 3ut before starting on the cho%e setup# it8s important to remember a few other tuning parameters. The Q-et cho%e setup assumes that other engine parameters parameters are correctly set up and tuned. *ost importantly is proper ignition ignition timing. 3efore doing any carb tuning# it is imperati!e that the initial initial timing# total timing# timing# timing cur!e# and !acuum ad!ance systems be correctly set set up and functioning. functioning. Pou cannot cannot correct tuning issues related related to timing by twea%ing twea%ing the carb. carb. ;ee my papers papers on setting up timing and !acuum ad!ance before you start playing with carb adustments. 7lso# the cho%e setup assumes that your carb is correctly etted etted and set up. "f your carb is running either rich or lean# the cho%e will not function properly# e!en when adusted to specification. specification. *a%e sure your carb has the correct ets# rods and float le!el adustment before trying trying to set up the cho%e. cho%e. These carbs carbs are old# and and most of them ha!e seen some 4creati!e6 etting etting o!er the years. years.
1rocedure There are two styles of Q-ets# and the setup procedure differs between the two. The early style carbs utili'e a 4di!orced cho%e6 system. system. These carbs# used from 1DD(1EH# rely on a cho%e coil bolted down to the inta%e manifold inside a little metal metal bo$. There is a rod that connects the carb cho%e lin%age to the coil on the manifold. 7s the manifold crosso!er gets hot# the coil e$pands# and pushes the rod up to open the cho%e. The second style uses an 4integral cho%e#6 and was used from 1EF(1/1 e$cept truc% (
rac% the throttle slightly slightly and push down on the di!orced cho%e rod to close the cho%e fully. fully. )elease the throttle. eep eep light finger pressure on the cho%e rod to maintain light closing pressure on the cho%e. ;uc% on the !acuum hose to retract the cho%e pulloff. "f the pulloff does not retract# it must be replaced. replaced. Aith the pulloff fully retracted retracted and light finger pressure on the cho%e rod# use your other hand to lightly push down on the forward lower edge of the cho%e blade to simulate to force of the air across the blade. This will open the cho%e slightly. slightly. 7t this point# measure the distance between between the forward lower edge of the cho%e blade and the forward wall of the airhorn. This distance should be U6. Pou can use a U6 drill bit as a simple gauge to chec% it. To adust# bend the tang on the cho%e lin%age where it contacts the cho%e pulloff rod. )e-attach the !acuum hose to the pulloff and the carb.
This completes cho%e adustment for a di!orced cho%e carb. ,. Inte$ra2 !ho5e %4ste#s (+67/-+6C+) (+67/-+6C+) )emo!e the three screws holding the blac% cho%e co!er to the cho%e housing and remo!e the co!er. "f ri!ets are used# drill out the ri!ets. rac% the throttle slightly open and push up on the cho%e coil le!er inside the cho%e housing until the cho%e is closed. there is a small small 1I/6 hole recess recess inside the cho%e housing which which will appear appear right below the lower edge of of the @otice that there cho%e coil le!er when you push the le!er up. "nsert a 1I/6 drill bit in this recess and allow the le!er to rest on the drill bit. "n this position# your cho%e blade should be fully closed. "f not# bend the cho%e intermediate rod that comes up through the body of the carb carb and attaches to the cho%e blade le!er. le!er. 3end the rod so that the cho%e blade is fully closed. drill bit# crac% crac% the throttle slightly slightly and rotate rotate the fast idle idle cam the steel steel counterweight counterweight that rotates rotates on the @ow# remo!e the drill cho%e housing shaft between the cho%e housing and the carb body so that the fast idle cam follower is positioned on the second step of the cam# right up against the edge of the highest step. "n this position# apply light finger pressure on the cho%e coil le!er inside the cho%e housing to close the cho%e lift up on the le!er. The cho%e should be crac%ed open FI1D6 as measured between the rear upper edge of the cho%e blade and the rear airhorn wall. >se a drill bit to chec% this. adust# notice that there is a small sheet metal tang attached attached to the lower side of the fast idle cam. This tang determines the To adust# tra!el range of the cho%e. 3end the tang to adust. cho%e housing co!er to to the cho%e housing. housing. "f you8re using using an electric cho%e# cho%e# +B @BT @BT use a gas%et gas%et between @ow# install the cho%e the co!er and the housing. 3e sure that the cho%e coil tang in the co!er correctly mates with and engages to the cho%e coil le!er inside the housing. attach screws loose# rotate the co!er so that the indicator scribe line points straight straight up. This should fully close Aith the co!er attach the cho%e. "f there is no scribe line electric cho%es do not ha!e lines# rotate the co!er counter cloc%wise until the cho%e blade is fully closed. Lightly snug the the co!er attach screws screws to %eep the the co!er in this position. Pou may need to crac% the throttle open to get the cho%e to snap closed. )emo!e the short piece of !acuum hose attaching the cho%e pulloff to the !acuum nipple on the carb. 7ttach a long about 28 !acuum hose to the pulloff. replaced. ;uc% on the !acuum hose to retract the cho%e pulloff. "f the pulloff does not retract# it must be replaced. retracted# use your other hand to lightly push down on the forward lower edge of the cho%e blade to Aith the pulloff fully retracted# simulate to force of the air across the blade. This will open the cho%e slightly. slightly. 7t this point# measure measure the distance between the forward lower edge edge of the cho%e blade and the forward forward wall of the airhorn. This distance should be U6. U6. Pou can use a U6 drill bit as a simple gauge to chec% it. To adust# turn the screw on the end of the cho%e pulloff le!er. 7fter each adustment# you must release the !acuum on the hose and suc% on it again to re-seat the pulloff# each time apply the light finger pressure to the forward lower edge of the cho%e blade. screws and rotate the co!er cloc%wise. Bn hot air cho%e systems# the Bnce completed# loosen the cho%e coil co!er attach screws co!er scribe mar% should be aligned with the second dot cloc%wise of the center dot on the cho%e housing mar%s. Bn electric cho%es# the indentation in the outer edge of the co!er should be aligned with the screw : clip location towards the forward side of the cho%e housing. ;nug ;nug the screws down or re-install re-install new ri!ets. @BT,9 Bn ri!eted applications# applications# the ri!et holes can be tapped for 10 screws. )e-attach the !acuum hose to the pulloff and the carb.
This completes cho%e adustment for an integral cho%e carb. Tunin$ Tunin$ note on Inte$ra2 !ho5e !arbs" Ahen doing custom tuning adustments on the integral integral cho%e carbs# %eep the adustments limited to 2 parameters9 parameters9 ;etting the position of the cho%e co!er rotating the co!er and adusting the cho%e pulloff screw. screw. Ahen doing these adustments# %eep the following following relationship in mind9
The co!er adustment rotating the co!er determines how LB@G duration the cho%e is applied before fully opening. Turning Turning the co!er cloc%wise shortens the duration. Turning Turning the co!er counter cloc%wise increases cho%e duration. "t only ta%es a !ery small rotational adustment adustment to change this 1 or 2 mar% lines on the co!er. ontrary to popular misunderstanding# misunderstanding# turning the co!er does NOT change how rich or lean the carb runs with the cho%e applied. The cho%e pulloff screw determines determines how )"< or L,7@ the carb will initially initially run when started cold. "f your carb runs rich when initially started# started# turn the screw to open the cho%e a little more. Li%ewise# if your car starts lean and wants to die# turn the screw to open the cho%e blade a little less.
"n summary9 )otate the co!er to change the amount of TI'E the cho%e is applied. 7dust the screw to change how rich/lean the cho%e is upon initial startup. . ?ast Id2e ench %etu The fast idle screw is located on the passenger side of the carb# on the primary throttle shaft ust below the cho%e lin%age. lin%age. 7n initial fast idle setting can be done as follows9
3ac% out the idle speed screw on the dri!er8s side of the carb full turns. rac% the throttle open and rotate the fast idle cam so that the cam follower is on the top fastest part of the cam simply lift the cam all the way up.
Technica2 Te chnica2 E2anation" The Q-Jet irva2ve and %econdar4 Oeratin$ %4ste# Lots of misunderstandings on the operation of the secondaries on a Q-et carb. To understand understand the operation of the Q-et# first you ha!e to understand what a 4!acuum secondary6 carb is and how it functions. 7 4!acuum secondary6 secondary6 carb is a carb whose secondary throttle blades are opened by the force created by !enturi !acuum in the primary side of the carb. The !acuum created created in the !enturi !enturi of a carb carb is directly proportional proportional to the the mass flow of of air passing through through the !enturi. This !enturi !acuum is completely completely independent of manifold !acuum# which is non-e$istent non-e$istent at wide open throttle ABT. 7 !acuum secondary carb has a little hole drilled right into the !enturi on the primary side# and this !enturi !acuum is fed to a spring loaded diaphragm attached attached to the secondary throttle shaft. Bnce airflow on the primary side approaches the ma$imum flow flow capability of the primary !enturi# the !acuum will be high enough to o!ercome the diaphragm8s spring pressure# and the secondary throttle is opened by the primary !enturi !enturi !acuum. This is a !acuum secondary secondary carb. The Q-et does not ha!e any !acuum holes drilled in the primary !enturi# and there is no !acuum diaphragm attached to the secondary throttle shaft. The Q-et is not a !acuum secondary carb ( it is mechanical carb with a secondary air!al!e control. control. 3ut !acuum suc%s the air!al!e open# and the air!al!e is connected to a !acuum diaphragm# so it8s !acuum operated# rightO @ot really. really. "magine this9 this9 Ta%e Ta%e a spring-loaded spring-loaded screen door and set set it up right right out in your front front yard. 7s 7s the wind starts starts blowing# the the door gets pushed open. The harder the wind wind blows# the more the door gets gets pushed open. +o you ha!e a !acuum on one side of your your front yard suc%ing the door open..O Bf course not ( the pressure is the same all o!er your yard. The force opening the door is the mass flow of air pushing the door open. There may be a low pressure area in Te$as Te$as that is causing the air to mo!e# but Te$as Te$as is not 4suc%ing6 the door open ( mass air flow is pushing it open# and the door is responding to the actual total mass air flow being pushed through it. The Q-et operates the same way9 7t ABT# ABT# there is no !acuum in the manifold ( the manifold is !ery close to atmospheric pressure a correctly-si'ed correctly-si'ed carb carb will cause cause the manifold !acuum !acuum at ABT ABT to be at about 0.F6
The diaphragm on the side of the Q-et 4controlling6 the secondary air!al!e is actually the cho%e pulloff. "t is also connected to the air!al!e to hold it firmly closed when manifold !acuum !acuum is high. Ahen the engine is placed in a power condition ABT or low manifold !acuum# the diaphragm diaphragm rela$es at a controlled rate to pre!ent e$cessi!ely sudden opening of the air!al!e9 The longer the air!al!e is delayed in its opening# the bigger 4fuel shot6 the secondaries get upon opening# thus pre!enting a secondary tip-in stumble. The pulloff merely allows a controlled opening rate of the !al!e# and is not a !acuum-operated !acuum-operated control of the secondary throttle in any way. way. Thin% of the pulloff as the damper cylinder on the screen door9 The damper cylinder does not open the screen door ( it merely controls and dampens its opening rate. Thus the Q-et is not a !acuum !acuum secondary carb. "t is an air!al!e-controlled air!al!e-controlled mechanical secondary secondary carb with a damper. damper. The air!al!e is not operated by !acuum ( it is operated by mass flow. The air!al!e8s air!al!e8s opening rate is controlled and dampened by the loss of !acuum signal ( not by the creation of any !acuum. Cor some interesting reading on the different types of engine !acuum# feel free to drop me an e-mail re&uest for my 4,ngine =acuum =acuum ,$plained6 tech paper.
Technica2 Te chnica2 E2anation" He2< '4 %econdaries DonFt Gor5< Gor5<
;econdary loc%out loc%out le!er staying engaged. engaged. There is is a loc%out le!er le!er on the secondary secondary throttle throttle that will pre!ent the secondaries from opening before the cho%e is wide open. ".e.# the secondaries are not allowed to open when the engine is cold# thus pre!enting engine engine damage from the engine being placed placed under e$cessi!e load load before being properly properly warmed up. up. The secondary loc%out le!er can loc% out the secondary throttle if the cho%e is not opening fully# or if the cho%e is incorrectly adusted. "t is !ery easy to obser!e if the le!er is retracted and if the throttle is operating ( simply loo% at the le!er and !erify that it is allowing mo!ement of the secondary throttle throttle shaft when the cho%e is open. ;ome carbs# such as ?ontiacs# use a loc%out le!er on the secondary air!al!e rather than on the throttle shaft. shaft. ;ame principle applies ( simply loo% at the le!er and ma%e sure it is retracted when the cho%e is open.
2.
7 more common common and subtle subtle problem is the issue issue of inade&uate inade&uate throttle throttle cable tra!el. tra!el. This This is !ery common on or!ettes or!ettes and amaros. Aith a helper in the car and with the engine 4off#6 4off#6 ha!e the helper fully depress the gas pedal with the engine hot and the cho%e wide open to assure that the loc%out le!er is disengaged. Bbser!e the carb on the dri!er8s side and see if the secondary throttle mo!es to the wide open position9 Pou can grab the throttle le!er once the assistant assistant has the pedal to the floor and see if you can mo!e it further. "f the gas pedal does not fully open the secondary throttle# you ha!e one of se!eral methods to fi$ this9 a. b.
)emo!e )emo!e your your floor floor mat. mat. " call call this this the 42F horse horsepowe powerr floor floor mat tuning tuning tric%.6 tric%.6 "nstall the throttle throttle cable in in the correct correct position on the throttle throttle le!er. le!er. The Q-et has has an 4upper6 and a 4lower6 cable attach hole9 The upper hole was used used for truc%s and station wagons. wagons. The lower hole was was used for or!ettes#
amaros and @o!as. "f you install a or!ette throttle cable cable in the upper hole# you will ne!er achie!e wide open throttle since there is not enough cable tra!el to open the throttle from the top le!er location. c. ;traighten your throttle throttle cable attach brac%et. The brac%et brac%et that supports the cable at the carb is often bent slightly forward. "f the brac%et is bent or mo!ed forward# it will not allow enough cable tra!el to open the throttle fully. fully. ;imply bend the brac%et brac%et bac% ust a tad9 " use a big hammer and a steel rod rod to gi!e it a whac%. " call this the 42F horsepower hammer tuning tric%.6 d. Ci$ your gas pedal lin%age. lin%age. =ery =ery often# the actual steel lin%age lin%age coming off your gas pedal will will be bent bent a little little 4flat.6 4flat.6 This will cause the pedal to hit the floor before the carb is wide open. Pou can gi!e the pedal more tra!el by simply grabbing the gas pedal and bending it up off the floor. are should be ta%en not to damage any plastic pedal rod bushings when doing doing this9 ;upport the plastic plastic pi!ot points points when bending the the pedal rod so the plastic bushings bushings do not brea%. e. Ci$ the slop in the gas pedal attach attach le!er. le!er. *any or!ettes ha!e a bit of wear on the le!er that attaches attaches to the gas pedal rod9 The The rod is Y+Y shaped# shaped# and the attach attach le!er has a Y+Y hole with a screw tightening tightening feature. feature. "f this Y+Y hole is worn# you can remo!e the le!er# grind some material off the loc%ing feature surfaces so it snugs up tighter# and reinstall it to gain some tra!el
Technica2 Te chnica2 E2anation" '4 !ar Is Hard to %tart '4 !arb 'ust be @ea5in$ a22 the ?ue2 Overni$ht< Bne of the most common complaints on a Q-et carb is that the car is hard to start after sitting o!ernight o!ernight or for a few days9 The engine must be cran%ed e$cessi!ely and will finally start after pumping the gas pedal repeatedly. repeatedly. The common diagnosis is that 4The carb well plugs are lea%ing ( you need to epo$y the plugs.6 7ctually 7ctually## there are se!eral issues that can cause this symptom# and the plugs are seldom to blame ( some of these things can be fi$ed# and others cannot# but there is no one single cause for this problem9 1. The most common cause cause of Q-et start problems# problems# if it occurs after after the car has been sitting o!ernight o!ernight or longer# is that the fuel standing in the fuel line between the pump and the carb is draining bac% through the fuel pump chec%!al!e due to a slight lea% in the pumpXs internal internal chec%!al!e. ;ince ;ince the Q-etXs Q-etXs needle and seat is is in the bottom bottom of the float float bowl# the fuel fuel draining bac% through the fuel pump will actually actually siphon fuel fuel out of the carbXs carbXs float bowl. bowl. To To fi$ this# this# you need to replace the pump# but not all new pumps ha!e chec%!al!es that seal completely# thus the problem can persist. "f this is the case# you can first install a chec%!al!e inlet filter# part number 20F2 from @7?7 for the 4long6 filter# or 20F1 for the 4short6 filter and see if that cures the problem. "f not# you can remo!e the clip from your needle so that it will drop down into the seat after engine shutdown to seal off the seat from the siphon action. 2. "f this this does not cure cure it# you may ha!e may ha!e a lea%y float bowl well plug either on the primary or secondary side. 3efore doing any well plug repairs# " strongly recommend recommend that you you !erify this problem problem first9 "f you remo!e the the carb from the the engine and set it up on some tall soc%ets on your wor%bench# you can fill the float bowl with fuel and easily see if the well plugs are dripping. Lea%y well plugs will be readily and immediately !isible. !isib le. "t is seldom that a post-8E0 Q-et will lea% from the well plugs. To To fi$ lea%y primary well plugs# drill and tap the well well plug area for 10-2 screws. "nstall 10-2 $ U6 Clat
Questions= !o##ents 8 Technica2 ssistance "f you ha!e &uestions or comments regarding this article# or if you notice any errors that need to be corrected which is &uite possible since "8m writing this from memoryN# memoryN# please feel free to drop me an e-mail. 7lso# if you need any technical assistance assistance or ad!ice regarding this process# or other maintenance issues# feel free to contact me9 =/CastarsZmsn.com
