The cobra clutch has harder pedal effort then stock.
The king corbra has less pedal effort.
The centre force has less force. Uses counter weigths for clutch pressure.
Disclaimer: I have only owned the first clutch and a stock one and God forbid a fenco.
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82 Mercury Capri 302.
Comp. Cams
Tremec 3550
3.73's
12.8@106 N/A
Kevin's Capri