The distributor is points style with H.E.I. conversion kit. What it's doing when rev engine up the distributor is advancing and staying advanced. Will not return. This problem causing engine run hot. And when you pull up to light R.P.M. were up. Found problem today with nephew was holding light on tab. Also explains ignition breaking up at higher R.P.M. . Problems been pain in a## lately. Fix one find another.