For the record, the bottom end of my 450 is stock. Good shape, but stock.

Like Clarkie says, my bike got off the corners surprisingly well. His made power like a roadracer (and good power at that), but I was always pleasantly surprised by how little work I had to do to mine to make it a fun bike.

We had dyno curves done of both bikes on the same day. I won't say any numbers, but the CRF was down 3 to 4 ponies up top (as I remember? Is that right Aaron?), but didn't have to rev very hard to make a bit more torque down low. All of the bikes (built or not) were relatively close to each other in curves once the jetting was right. Clarkie's was faster at IMI, but that was mostly rider.