Hi Folks,
Great advice, but if the machine is in a basement or home, the three-phase could be very expensive; either more wiring from the pole, or a phase converter. You might try single-phase. I’ve run Kluges, C&P open and automatic and V36’s, all on single-phase motors. Some of the older motors are built for original equipment rpm control, specifically the motor I had on an 8×12 Snapper, and it worked great. My suggestion? Either have several sizes of primary drive pulley’s around, and change to suit, or find a motor built for a mechanical speed control.
Hope this helps a bit.
Barb