Re: Quadrajet Needle & Seat
Dean Oliver would tell you to stay away from the .149 Edelbrock needle and seat. He says he has helped a lot of racers who were having acting rich/flooding-type problems simply by having them switch to a smaller, "traditional" orifice size. He helped me with a car that was so blubbery at idle and around the pits that it would actually smoke gray. I switched the needle and seat, verified the float setting (it was right) and I had a different car. Dean's theory is that the .149 passes so much fuel that it creates turbulence that prevents the float from seating properly, which obviously makes the car flood.
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