And when I say this thing won't see over 6500rpm's I mean that. I plan to shift at around 6000 and set the rev limited pretty soon after it. It's a 295cfm flowing head, indy single plane, D1SC procharger with intercooler on E85 on a not so crazy bottom end (factory forged crank, H beam rods, stud girdle...that's it) so I figure it may be able to take boost, but not RPM's. It'll make more power than I need at 6000 with 8PSI so I don't plan on really revving it much higher.