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Old 09-22-2011, 09:01 PM
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help with carburetor

my 2 barrel stock carburetor is going bad on my 71 cutlass 350(stock for now) with headers and 2-1/2'' pipes an i'd like to replace it.do you guys have any suggestions,i know i want a 4 barrel carb,a buddy of mine says get a holley street avenger 670 what do you think about that?
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Old 09-22-2011, 10:34 PM
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Pick up an OEM 4bbl intake and Q-Jet.




.
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Old 09-23-2011, 12:32 AM
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X2....the q-jet is a little tricky to tune for someone who hasn't been in one but once you get it dialed in...helluva a carb.
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Old 09-23-2011, 12:04 PM
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The street avenger is a good carb, I think that the 670 is more carb than your stock 350 needs. I've run 600cfm carbs on mildly built 350 engines with great results.

The Rochester's are great once you get them right, finding oem carb and manifold in good usable condition might be a bit more than an aftermarket manifold and carb.

Consider rebuilding your 2bbl:
1) Low cost (a kit and a can of Gunk)
2) You will get the experience of carb building (good experience to have with either the Holley or Rochester 4bbl)
3) Your stock engine will run great with the stock carb and you might save some gas
4) If you mess up the 2bbl, you can always go get the 4bbl setup.
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Old 09-23-2011, 12:20 PM
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Quote:
Originally Posted by starnest
Consider rebuilding your 2bbl:
1) Low cost (a kit and a can of Gunk)
2) You will get the experience of carb building (good experience to have with either the Holley or Rochester 4bbl)
3) Your stock engine will run great with the stock carb and you might save some gas
4) If you mess up the 2bbl, you can always go get the 4bbl setup.
Sounds like good advice to me.
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Old 09-23-2011, 12:56 PM
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Thanks great idea I never thought able doing that,I'm always willing to learn
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Old 09-23-2011, 02:15 PM
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Quote:
Originally Posted by PGH Cutlass
I'm always willing to learn
Great, here's something else for you to learn. Whenever I bought another car, truck or project through the years, I always bought the FACTORY service manual for the car. My go-to guys for the last several decades is Faxon Auto Literature. It's one of the only places that I have found that offers up genuine originals for a reasonable amount of money. In my opinion, all the aftermarket manuals such as Chilton, etc. aren't worth the paper they're printed on. If you don't have your hands wrapped around an original or reprint from an original, then you're not making the complete and true information available to yourself. Here are some originals and reprints of a '71 Cutlass service manual that you might consider buying. I'd probably opt for either the fair condition example for $49 or the good condition manual for $59.
http://www.faxonautoliterature.com/Search.aspx?c=34430
This service manual will show you exactly how to rebuild your 2-bbl and will include all CORRECT, ORIGINAL FACTORY settings for all parts of the carb and all the rest of the car as well.
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Old 09-23-2011, 02:41 PM
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I got one in earlier this week cost me $85 with shipping. Its in great condition from faxon
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Old 09-23-2011, 02:44 PM
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Well its actually the chassis manual,I have to order the other two books
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Old 09-29-2011, 01:32 PM
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Get the factory service manuals - great idea!

The engineers that designed and built our cars know all about them. The service manuals they wrote provided all the information (a good mechanic) needed to troubleshoot and properly repair the cars.

Between my 67 and 71 chevy service manuals I have enough information to repair almost any chevy car and truck up to the early 80s. Add in some factory assembly manuals and you can do proper restoration work.

Forget the Haynes and Chilton manuals unless you just need a schematic and/or some torque specs.
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