[Eticket]

Your problem isn't your cam. It should pull great to 5500+.. that's where I was shifting my stock block engine with home ported heads.

What ET/MPH are you running now? For reference, my car with PT52 and FMIC was running low 11's @ 121mph consistently with about 22-23psi of boost.

If it is running out of steam as you say.. and you have a stock intercooler.. it is getting heat soaked and there's where your power loss is.

Because of the cam lobe profile, a roller cam "should" always make more power than a flat tappet, but whether it's enough to make a difference in a typical combo is a toss up. Guys have gone 9's with a 218 flat tappet - aka Jason Cramer.

Yes.. a roller cam solves the "going flat" problem.