Well, to add to this issue, i guess i should have mentioned that when i first start it, and wile its still cold, i have full power, no lag. no popping nothing, up untell the engine gets a tiny bit of heat is when it starts. the colder the car is the better it runs :s id assume a piston is bad but its not burning oil, it makes zero nocking, and runs amazing without that belt :s !!! and as for the comp. previous owner has some kind of tuning to it, id assume he did it on his own computer at home, rev limiter hits at 4000rpms. for 2 hits then jumps to 6000rpms... i dont think thats right at all, the odd time it wont go past 4000rpms *only in park or nuetral though* and not to forget the rear o2 sensor was deleted. so maybe i should try a new computer? but being a 1998 GTP is it not 1 year only for comps?