I'm not sure what your bike looks like, but you could also put it on a diet and drop some weight off it, replace the steering stem, axle, swingarm and all the oem stuff for starters. Also fittle around with air pressure in your tires. also I have seen a little gain in V-force reeds over boysen and shear out of frames over CPI on the dyno. 39 or 38's should help out. Do you have any pics? We might be able to help out better with some pics. JMO....