My car is popping under acceleration. It starts at about 3500rpm and stops around 4000rpms. Is it my Vacum advance or timing or something else? I have recently installed a high flow filter and 2-3/4" intake pipe...could the increased flow cause the problems? There are no leaks in the intake (I had to heat the elbows with hot water and stretch them over the pipe) I have the AFM mod at three clicks...should I try 1 more notch?
Thanks for all help
Thanks for all help