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#1 |
Registered User
Join Date: May 2009
Location: Greensboro NC
Posts: 40
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Carb
Any recommendations on what type of Edelbrock carburetor to use on my 72 Cheyenne. 1405, 1407... Not sure which one to use? I think I had a Rochester installed. I had it rebuilt and one backfire later I'm fighting a fire. I was told to just try a new carburetor instead of having it rebuilt again, any thoughts rebuild or replace? Thanks in advance for your help.
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#2 | |
Registered User
![]() Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: Carb
Quote:
Seriously they work, either way. Bolt and go if everything else in your engine is set up properly. They do take a minor amount or adjusting but the guys on their technical site or phone are more than willing to help. I got mine dial to a tee by vac guage. |
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#3 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,151
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Re: Carb
There are any number of reasons for an engine to backfire. Carburetors are only one cause. Any carb could have a fire after a backfire. I would find the cause of the backfires before I did a carb swap. It is likely you would add to your problem instead of solving it.
Was the rebuilding of the existing carburetor done by an experienced Quadrajet professional?
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#4 |
Registered User
Join Date: Feb 2011
Location: Parkville, MD
Posts: 1,024
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Re: Carb
Agree with HO455. Figure out what is wrong with your current setup instead of changing things and throwing parts at it.
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1970 C20 Custom Camper - 350, TH350 1997 GMC Suburban 1994 Acura Integra GSR 1987 Dodge Daytona Shelby Z |
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#5 |
Registered User
Join Date: Dec 2009
Location: El Dorado Ca
Posts: 3,374
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Re: Carb
I run a Edelbrock 1406, it has electric choke, I have had good luck with these on other trucks as well,and they are easy to rebuild
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#6 | |
Registered User
Join Date: Apr 2011
Location: Fairview Park, Ohio
Posts: 1,031
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Re: Carb
Quote:
Mark
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My build page http://67-72chevytrucks.com/vboard/s...d.php?t=764662 My cabinet building site http://www.cbcabinets.com |
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#7 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,963
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Re: Carb
Was the timing changed? That would’ve been my first guess as to a backfire cause. If it was running fine (?) and absolutely nothing was done other than to remove the carb - get it rebuilt by someone - and then reinstall, I’d be on the horn to that special someone. If the rebuilder also removed and reinstalled, I’d be on the horn even quicker...
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#8 |
Registered User
Join Date: Aug 2014
Location: My Recliner in Rockingham,North Carolina
Posts: 99
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Re: Carb
New Edelbrock AVS Thunder 1906 650 cfm, electric choke.
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#9 |
Registered User
Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,662
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Re: Carb
I say a 1406 or a 1906. You'll also need either a fuel pressure regulator set to 5.5 psi or Edelbrock's fuel pump because they flood with more pressure than that. Also need a heat insulating gasket to stop fuel percolation.
Backfiring from the carb is a timing issue. Backfiring from the exhaust is a rich mixture issue.
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72 C10 lwb fleetside -stock 350/350 combo |
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#10 |
Registered User
Join Date: May 2009
Location: Greensboro NC
Posts: 40
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Re: Carb
Thanks for the replies. I didn't have any timing issues that I know of. I stopped driving the truck because it was leaking fuel and the performance was no longer there. I wasn't driving crazy just driving. I parked the truck for months until I tried a guy named Randy on the rebuild. I installed it and busted it over a few times. I think I may have used a small amount of gas to get it to start.(Then the fire)
I spoke with a shade tree mechanic and he recommended that I buy a new carburetor since my old one was involved in a fire. If I decide to rebuild again can some recommend a professional? Thanks again.
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