I'm just curious with HPT out, what rpm are people going upto on a mostly stock motor. In other words, will running just cams let you get more power on a higher rpm, or do you need to change a lot, or what? I've never looked into it because i've never planned on building a head up, so i figured i would ask just in case i can do it safely. If not, then oh well, not a loss. thanks for the help in advance.