General Category > Quadrajet Carb Talk and Tips
carb questions
Cliff Ruggles:
All of the Chevy 1970-1976 divorced choke units are pretty much equal from a performance standpoint. They will have large MAB's, side inlet (with a few exceptions) and divorced choke. If you can use a divorced choke carburetor it will work fine for what you are doing.
It's going to need a little help in a few areas being emission calibrated, but nothing dramatic needs to be done to it.
I can supply a kit with tuning parts to take the guesswork out of the equation if you decide you can use it. It will have a PCV port, and at least one manifold vacuum and one ported vacuum port for the distributor......Cliff
old blue 75:
Is that a 60's carb with that vent set up?
old blue 75:
Bad news.
The 7045214 carb has bad inlet threads. Some one put a self tapper in it.
Looks like I will have to try and find a helicoil kit.
The way that the fitting seals at the bottom does the bottom of the tap need to be
ground off so there are full threads at the bottom.
Cliff Ruggles:
You will not find that to be an easy operation. I don't like doing the later carbs with the 1"-20 threads and I'm set up for it.
Might want to look for another carb or main casting.
Not sure what year the pic above is, probably a 1969........
old blue 75:
Why do you not like doing it? Is it to thin or the seal seat?
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