Sorry don't agree , both cars leave together first to stripe wins, both dialed the same that to me is heads up, however it is like the super classes minus the electronics at least in 11.50 and 12.50 even then only a trans brake is allowed but not in 12.50 according to Northeast Index Racers Assoc. rules which are the rules most of the index tracks around here use. I know there are other types of " heads up " racing that are completely different.