Hypothetically ...... if I were to throttle up at 80 mph it feels as though the Clutch or Belt is slipping. The bike does rev up, and will eventually will get to 90-100 mph, but just doesn't feel right. Has anyone experienced this. I just had Stage II Cams done and don't recall having this issue prior. Also a recent Belt & Pulley replacement. Bike is at 37k miles.