Sometimes it dies out for a second like running out of gas. In that case it dies, comes back, dies, comes back for as long as I maintain steady RPM/throttle position. At other times under the same conditions, more like a miss or sputter. It seems to be the worst at 1/4 throttle or a tad less at 60-65MPH, 3500RPM. Either no acceleration or very slight acceleration. Mainly in 5th but have felt it some in 4th. It clears up immediately if I dump on the trottle. Otherwise it runs great, although I don't think I've run it over 75MPH since the problem began (after the AI removal, EPCO pipes, Freak and re-jetting/shim jobs)
