we tried the pr4 ECU and it was acting like it was hitting a revlimiter at 3200 rpm's so we pulled the #1 spark plug off and nothing happened so we did a compression test and it was good, so we seen if it had spark and it did, so I'am not to sure what was up with that, so we tried the PM6 ECU and it reved up normal....so we pulled the plug off of that and same thing nothing happened.......so if anybody knows whats the matter with it then let me know......also we can't get the timing set on it we grounded b20 and you can't see anything happening with the timing light......so if you know how to do the timing with the PM6 ECU then let me know........P.S the dizzy works great see my race car in my signature I'll be raceing this saturday if I get this problem worked out......feel free to post anything you know....... Thanks guys