what cam and heads will you be using???
those cobra manifolds when ported can hold their own pretty good.....from what people say and what articles and dyno results seem to show...
As for the rev lmiter, I dont know about that...I just saw the cam made power from 2500-6500 and was assuming it wasn't redline. I just got my stang, and really havent had a chance to open 'er up. Been busy .