I'm going with Shep, and ACT on my new car
I've had ACT 2600lb w/ street disks on my mildly modified cars. They took lots of abuse just fine, and had great street manners. One also had a Fidanza flywheel; it allowed the engine to rev more freely and improve response, but the car had some issues trying to keep the revs up when it fell towards the idle RPM. Anyone who says the pedal feel for a 2600lb clutch is "too heavy" needs to stop being a pansy. My 20G car originally had a Clutchmaster's clutch, and it sucked cock.