Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

heat insulator gasket

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kfa670:
I have the same carb.

I had a series of cheap fuel pumps with returns back to my tank. I still had hot start problems with these but my main problem was supply under wot. I would run out of fuel.

I put on a 8 psi 80gph pump bit it didn't have a return. This totally helped the wot supply problem but not the hot start, got even worse. I ended up plumbing up my own sort of return T with a fine adjustment valve that could allow excess pressure to bleed off I to the return. This seemed to 85% fix the problems

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