I want to build an engine. Our riding is exclusively medium to long distance grade (woods) riding. I would like to concentrate on mid to top end power. Fuel economy is a consideration due to the distance of some of our rides. I will also be installing a RZ 350 gear set. Should I stay stock with porting, or upgrade to different cylinders / pistons / crank / head? What is the difference between the cheetah and the wampus?
Thanks,
Wheat