On my dyno sheet in front of me I lose a tiny bit of torque from 3150 rpm to 3850 rpms. Before 3100 rpms torque is great, so not really losing that "pep" you guys are talking about. And since I have lightened flywheel 3100 to 3800 rpms goes pretty quick. Max torque is at 5100 rpm, and Max hp at about 6700 or 6800rpms. Whp steadily climbs all the way up. And also like I said before tires are brand new, maybe 1000 miles on them.