 kx500
i have made at least 40 dyno pulls on a land and sea wheel dyno , my best was with u 2 vp fuel 10 degree adv timing , carb bored to 40.5 mm, a .010 head gasket .025 milledfrom head 178 mian jet 8.5 slide 40 pilot ngk9 plug pc 2 pipe ,wiesco 86mm piston , lots of port work .i port racing heads for auto motive at my shop every day , iused v force reeds uni filter power core silencer, piston .005in hole tdc. recut squish for.025 , got peak rear wheel tourqe to 55 ft at about 6000 peak hp from about 6800 to7200 , stewart |