Originally Posted by SS_Firehawk

MY pulley's kick arse. Best $190 I spent ever (Group Buy). I'm biased and defend em vehemently. It's the one mod where I found the difference instantly noticeable. Redline should stay stock unless your running out of RPM at the track and it's more beneficial to stay in that gear than shift. Changing exhaust cams and intake manifold can move it. But I believe the Motordyne manifold would regress power peak by a few hundred rpm with it's longer runners. There is still power over 7.5k, but you are on the other side of the hill.