Sorry for resurrecting the thread, but through a google search for wheel differences, this popped up. And you know, since I just joined and all, I like to make an entrance.
This guy "modified" his 66 for heavy(er) duty stitching, and stated he placed a "thicker" balance wheel on it to give him more torque. But then he dropped the ball and failed to mention WHICH wheel it was.
Anyone have a clue as to what he possibly could have done?
https://www.youtube.com/watch?v=QRIMTLbrxUk