I took it apon myself to build from ground up diy motor mount diy jackshaft setup to run the motor centered. installed a silver PK from j over at Pirate. removed one of the head gaskets comes with 2 stock. used copper spray on the head gasket, installed billet intake, and removed some casting flash that was just touching the piston on the intake port(china quality control) and matched the gasket this thing runs sooo sweet 34.8 mph not even broken in yet.. breaking in at 32:1 with sabre..