The primary clutch moveable sheaves I left it stock. On the stationary sheave angle, I increased the angle 1/2 of one degree. That equates to .024" in a distance of 2.750". On the Secondary stationary sheave I increased that angle .048" in the same 2.750". That is equal to one degree more sheave angle. On the movable sheave I increased the angle .024" in the same 2.750". In other words, 1/2 of one degree. In assembling the clutch, I installed two .030" washers from the older three tower driven clutches before installing the moveable sheave with the four star cap screws to set my belt deflection. With the belt deflection already set, install the clutch onto the jack shaft with only one shim against the bearing. I then machined a spacer to bolt the clutch to the jack shaft and gave myself about .080" of float. If you can't machine a spacer, you can always use smaller washers than the spline ID to shim a larger washer that retains the clutch. I hope this helps. The clutches run much cooler and much more efficiently than they do in stock form!
