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41
Quadrajet Carb Talk and Tips / Re: what carb to build
« Last post by novadude on May 30, 2025, 08:14:01 AM »
Something to note about the 17059216...

If my memory is correct, this carb does not have provisions for a ported vacuum source.  If that is something that important to you, you may want to look closely before putting a bunch of time and money into that carb.  From what I recall, they have an EGR port slot that looks like it could be a ported source, but these have a bleed hole above that will not allow it to work properly as a ported vacuum advance source (unless the bleed hole is plugged).
42
Quadrajet Carb Talk and Tips / Re: what carb to build
« Last post by BAMiller on May 30, 2025, 06:38:09 AM »
Thanks, I'm glad I posted this I was leaning towards the 17085213. I did not notice that plug on the back. I did think it was odd the primary metering rods were .062 at the top of the taper. I will put it back together and put it back on the shelf. I think the 17059216 may be in better shape anyway.
With my engine combo should I use recipe 1 or 2? Thanks again
43
Quadrajet Carb Talk and Tips / Re: what carb to build
« Last post by Kenth on May 30, 2025, 01:38:21 AM »
https://cliffshighperformance.com/simplemachinesforum/index.php?topic=4486.0

I would start with the 17059216 for the above reasons.

HTH
44
Quadrajet Carb Talk and Tips / what carb to build
« Last post by BAMiller on May 29, 2025, 03:33:02 PM »
I need to build a carb for a 1981 Z28 I'm building. It's a 30 over 350 Chevy 9.7 to 1 compression with Vortec heads and a GM Roller cam they put in crate engines. Part #10185071 duration at .050 208/221 and lift .474/.510 112 lobe centerline. I have two good cores available a 17059216 and a 17085213. The first one is the 750-CFM model, and the second one is an 800-cfm model. Both have APT and idle bypass air. Is there any advantage to building one over the other? The car is just a driver with no plans for racing of any kind. Thanks
45
Quadrajet Carb Talk and Tips / Re: Edelbrock Q-jet
« Last post by Pontiac_455_man on May 25, 2025, 08:16:40 PM »
Hello all-

Newbie here but my 1st dip into the Qjet world was a 1910 purchased from that guy Merrick Motors in CO on top of a fresh 455 with Edelbrock mechanical pump-and nothing else (no regulator).  Kept flooding out the top couldn't get it to run for more than a few minutes.  Junked it for a Holley that bogged like crazy.

Got $450 for the 1910 on ebay- took the cash got smar and bought a custom Qjet +dizzy from Cliff.  Still in use this day, on the 2nd motor since then and it runs flawless.

Moral of the story, I spent just hair more building a factory Qjet that runs perfectly than buying the 1910 and having to dink with it..  They seem OK if you happen to have one, but IMHO not worth seeking out VS a desirable factory unit.

JMHO
46
Quadrajet Parts and Numbers / Re: Got a Pile of Quadrajets, Trying to Identify...
« Last post by bulletpruf on May 22, 2025, 10:41:39 AM »
Thanks, Kenth!

Scott
47
Quadrajet Parts and Numbers / Re: Got a Pile of Quadrajets, Trying to Identify...
« Last post by Kenth on May 22, 2025, 10:34:52 AM »
1.  17085203 1985 E4ME 5.0 LITER M.T   
2.  7028211  1968 396 & 427 M.T.
3.  Unknown   
4.  17085213  1985 M4M TRUCK 5.7 LITER 
5.  17054938  1973-74 OLDS SERVICE CARB 350-455 
6.  17054927 1972 CHEVY/GMC TRUCK & ASP, A, X, F, Y SERVICE CARB 350 ALL TRANS   
7.  17083224 1983 M4M TRUCK 5.0 LITER
8.  7026250  1966 OLDS 400 & 425

HTH   
48
Quadrajet Parts and Numbers / Got a Pile of Quadrajets, Trying to Identify...
« Last post by bulletpruf on May 22, 2025, 06:31:15 AM »
So I picked up 45 carburetors from a nearby shop that was closing down.  These all appeared to be customer take-offs.  Got some Webers, Solex, Autolite (2bbl and 4100), and a bunch of Q-jets.

I think I have figured out what some of them are, but could use some help on the rest -

1.  17085203   Fresh rebuild
2.  7028211   1968 396/427 Manual trans
3.  Unknown   
4.  17085213    Truck/motorhome 454 1970's?
5.  17054938    SR for 74 Olds 350 AT?
6.  17054927    1970's GM truck?
7.  17083224   
8.  7026250     1966 400 or 425 Olds?

Anyone have any info on these?

Thanks,

Scott


49
Buy Quadrajet Parts, Quadrajet Kits, Service / Re: Ordering Parts On the Website
« Last post by Mr.Pontiac on May 21, 2025, 05:44:22 AM »
7044266 need electric choke set-up.send me notice, will pay immediately
50
Quadrajet Carb Talk and Tips / Re: 17085226 - What do I have here?
« Last post by Burd on May 20, 2025, 06:52:27 AM »
Look in the Q-Jet handbook.
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