All I really want to know is if I take say a 292 bore it over 30 or 60, maybe get newer rods and pistons, port the crap out of the heads and then run like roller rockers and all new valve train would it have no problem with going to 7000rpm. I think it should but wondered if others had advise. This project will most likely have a turbo on it becuase I like how they have 7 main bearing and think they would hold some serious power. Any suggestions are welcome.