OK guys do you want a clutch that will hold more than 420 real dynoed HP and 900 ft lbs of torque and drive like stock? If so South Bend clutch has it and it is as smooth as stock, it is the MU0090 con o. This clutch has been rumored to hold 600 + HP but I can tell you it will hold more than 420 on an 8% grade while towing a CGVW of over 23k and stabbing the throttle to over 40 lbs of boost a 55 mph with NO SLIPPAGE at all. Sorry it took so long to post the results of our clutch journey, I know some of you have been waiting a while but this clutch was worth the wait trust me. We chased our tails around a while trying to build the perfect clutch and little did we know Peter at South Bend had it allready figured out all along he just didn't know it's limits were so high. If you guys have any questions feel free to ask I'm sure between Peter and I we can set you straight. Thanks for all you help Peter this is an AWESOME clutch.