I'm curious to know if anyone has compared the power and torque curves of a ktm 450 exc, 525 exc and 540 exc (with KTM big bore kit). I'm getting the 540 kit on my 06 450 exc as well as going with the FMF 4.1 exhaust system with powerbomb as well as going with a JD jet kit. Any suggestions for cams? Is it worth it if I'm mostly riding on single track? I'm live and ride in the B.C. rockies and I'm loving it.