Im sure people will disagree with me but here is what I just did to my blaster this week.... I rebuilt top end, fmf pipe, jetted up to a 250, aktive reeds, reed spacer, airbox vents, uni filter.....I am impressed with the snappiness of the engine.....I am only 120 lbs but i tell ya what....that stuff there made the diff to me personally.....o ya i have a set of holeshots on front and rear.....i dunno if i were u i would chk compression and drop a little money into the stuff above that i got, well worth every penny