Whats your budget? if there is none id go with a dune port or aggresive trail port, welded crank, 30mm carbs, lrd pipes, k&n air filter keep it in the box but take the top off. Some reeds, advanced timing +4, shave you head to whatever you want your compression to prolly .020 will get you around 145psi depending on your elevation thats all i can think of