i will never understadn nascar rules. it seems to me that there should be a set of guidelines on what the cars must be. maybe withing a couple liters or cc's of each other in size, some kind of weight standard, and obviously saftey regulations, but the rest should be up to the team. it wouldn't take long for everone to be running similar setups and it would be a good competition. i mean why shouldn't they be aloud to tamper with the ecm?