What's the proper distance between the carpeting and the brake pedal for a 68 power front disk brake car? My brake pedal is about 2 1/2 inches from the bottom of the pedal to the carpeting. Since the clutch pedal is more like 4 1/2 inches off the floor, it doesn’t look right.

Background: I just changed the car from a manual brake automatic to a power brake 4 speed car.