It's a 2/3/4 pully on both the motor and drive wheel so at 1750 RPM at the motor it spins that guy around 3450 RPM at top speed! Belt speeds are 900, 1800, and 3600 ft/min which is an OK range but I'd love to put a 2 phase and VFD on there some day. Probably this drop in kit I'd imagine. There's...