Billet aluminum flywheel Speedway version connecting rod high compression piston Dyno 2 mod cam 22 pound valve Springs hi RPM rockers drilled for oil drain back Billet aluminum valve cover clears, new rockers stinger exhaust sounds great. 2 gallon aluminum gas tank new extra clutches and belts and other parts would make a fast mini bike or go kart. change the valve springs to 26 pounds you’ll get more RPMs and horsepower!! or take the whole toy for $1200 b.o.