I have been trying to make a 395 cfm Holley 4 barell run smoothly on my 302 GMC engine. It hesitates at low rpm and during takeoff. I have checked for vacuum leaks and changed the accelerator pump nozzels and cams but the hesitation is still there. The car really goes well once it gets past the hesitation problem, but it is very difficult to drive.
Does anyone I know if there is a low cfm Rochester or Carter 4 barrel that I could use as a direct replacement?
