Reply to "Mangusta clutch"

The location of the bellcrank on the ZF clutch shaft can also have an impact on the heaviness of the clutch pedal. Be sure that the travel range, when pushing the pedal in, is evenly distributed above and below the shaft center.

If it is not the slave cylinder will be pushing the bellcrank more in a straight line either on the bottom or the top of the stroke which is ver hard to do. With an easy clutch you can adjust the bellcrank to require more force when the pedal is at the top of it's stroke and make it easy to hold in at the bottom resulting in a more sensitive release.

Centerforce told me that their pressure plates are not easier to actuate for the given value (foot pounds), of the unit. You just need the right pressure plate / disc combination. Some people think that a high value or "racing" pressure plate is better but all you get is a sore foot if you do not have an engine in front of it that requires one.
Your engine horsepower, torque, traction availability and use (street or racing), should determine the pressure plate that you need resulting in the lowest possible clutch pedal effort.
Dick Ruzzin