gen 3 stk int/stk gen 1 ex cam will add power and decent budget mod. gen 3 race int or gen 1 race int will make more, still stk ex cam. only web cams i suggest stk piston bike is small stk lift web reground/reprofiled original cams. made more power with these than any other web cams on stk piston motor, more than the larger webs and ive used them all except the 384 lift. important since ur rebuilding to do performance head mods along with int cam to make good power. cam alone will make very little, supporting head mods alone will make more hp/torque than just throwing cam in stk top end. good competition valve job, .015-.020 mill, .45 mm hg alone w give u 10+ hp with good increase in torque. now u add camshaft and it will make the power it was designed to make. well ported head always beneficial but adds cost. few realize that vj/mill/thin hg account for half the hp increase alone from a built ported head. best bang for buck gen 3 stk int, mill, vj, thin hg. porting another 10 hp but $$$. to finish u need good hp exhaust, cams degreed correctley and tune, where many fall far short in becoming fast.
Last edited by gaz; 01-14-2019 at 10:05 AM.