Hello,
I recently built a 340 with a hughes engines whiplash cam and put it in my Dart. I am having a misifre at high r.p.m.'s or under load. 0 - 65 is smooth and effortless but once I floor it from 0 or at 65 m.p.h. I have a misfire and cant get the car to go over 80m.p.h.
I have...