Can I just run any cam or do i have to get crower? the head I'm running came with full crower valve train, but I don't know if the crower cams will be worth it. I actually don't want to pay a whole lot and rev my **** to 8500-9000 for power. I want usable power from 4000-8200. I'm thinking of just slapping on a CTR intake cam with my gsr exaust cam...