View Single Post
Old 09-11-2018, 11:00 AM   #4
nhramnl
Senior Member
 
Join Date: Feb 2010
Posts: 504
Likes: 7
Liked 352 Times in 82 Posts
Default 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.
nhramnl is offline   Reply With Quote