Thank you for the response. I had found Cliffs website before I posted here. I'm not patient enough to wait a year, and although I'm tempted to try a rebuild myself I don't want to add another variable to the mix. I'd always be second guessing if any issue I had was related to my rebuild. I'd rather just get a rebuilt carb from a reputable source that I can have a high degree of confidence in. I wish cliff was selling rebuilts. But thanks anyway.I think the reason no one has responded to your question very quickly is because they know you may not want to hear the answer.
Most of the regular guys on this forum will tell you that the best way to get a correctly built Q-jet is to send an old one to Cliff Ruggles of Cliff’s High Performance. He is the go-to Q-Jet guru. Only thing is, he has at least a one year waiting list for re-builds.
If you want to go this route, find a 1976 to 1978 vintage Q-Jet off of a large cubic inch GM motor. Note that Pontiac Q-Jets have the fuel inlet on the front of the carb as opposed to a side inlet on other GM applications. For my 68 400 project, I found a 77 vintage Q-Jet used on a corvette (no hate mail please). I had to modify the fuel line with flex hose for the fuel line. I had Cliff hand pick a rebuild kit to match my engine/drivetrain setup and did it myself after reading his book. Here is a link to his web site:
Cliffs High Performance Quadrajets :: Qjet Carburetor Rebuild Kits, Parts, Quadrajet Rebuilding, Quadrajet Parts, Bushing Kits, Carb Tuning
You could do the re-build yourself but you must read Cliff’s book “How to Rebuild and Modify Rochester Quadrajet Carburetors” and follow the procedure to the letter.
Please do.. thank you. Are they customizing the carb to match your engine and drive train set up?I have one coming from these guys for my 68 I'll let you know how it is
Rebuilt Carburetors | Remanufactured Carburetors for Sale | Carb-x.comPontiac | 4 Barrel Carbs. | 400ci | 8 Cylinder Engine | Pontiac | Domestic Carburetors | Carburetor Exchange
Their site seems to say the right things, but I don't have any direct experience with them. Make sure you get a Pontiac QJet and not a Chevy QJet. The difference is the fuel inlet. Pontiacs come in straight from the front. Chevy's enter from the side (like the one in the photo on their web site).
Thank you. I will keep looking a bit more, but so far they seem like the only alternative to the mega carb places, and as you say they do seem to say the right things. Would be great to get some 1st hand referrals though. btw the link that I posted was for a rebuild option where you send in your own carb. This is the link to the carb I'm considering buying.Their site seems to say the right things, but I don't have any direct experience with them. Make sure you get a Pontiac QJet and not a Chevy QJet. The difference is the fuel inlet. Pontiacs come in straight from the front. Chevy's enter from the side (like the one in the photo on their web site).
Just a quick update. The spacer that was used with the old Holley 650 was square bore 4 hole, so I had to order a new spacer. Got the Edelbrock 3/4" spacer kit that includes the longer studs for the front for the Quadrajet and the gaskets. The prior owner had used Earl's fuel lines and fittings so also ordered the new connector with a 45 degree bend so i can connect the fuel line to the new position on the Quadrajet while avoiding the radiator hose. Should have everything I need to start it up on Thr.Just got it today. 2 weeks to the day from when I ordered it. Looks mint. Cant wait to bolt it on.