I installed the Pro-street version in my '63 330 and called them before I did it.

They recommended 3.2 Kickdown Lever for a transmission with a big Servo and 4.2 or 5.0 lever for one with the small servo (usally a part # on the side of the trans starting with PK34 for less).

They also said to used 12 springs in the front clutch retainer.

The last thing was 2 1/2 turns for the rear band adjustment (pretty much standard).