some good options are advanced timing, raised compression, larger displacement, a pv cylinder, -2 swinger, short rears like 18", dual stage reeds, mx porting, low/mid range pipes like dmc or paul turner, 13t drive sprocket, good propeg nerfs, +3+1 a arms (at least +2) wider heavy duty axle, aftermarket front shocks, good cooling,.... engine ice, billet impeller, open grill, ect. good basket and springs with a lever to match. And a 2 into 1 carb setup if you want to pay for all that for an extra 1-1.5hp. If not in mud or water pods are good too. Beadlocks might not be a bad idea on a track either,.. esp with 12 heats of dirtbikes prior to yours. Just to name a few things.