well im running a full faced ACT organic double sprung disc, and a centerforce 2 pressure plate and mine eats tires, and has never slipped...
im also making real close to 200hp and have had a best time of 13.6 at 100mph...
if you go with a unsprung disk like a 4 puck, your clutch will be an on / off switch and be very touchy, and hard to deal with in traffic...
i would suggest getting a centerforce 2 if you can find it.. also i have a centerforce 2 disk if you want it.. ill give it to ya if you pay to ship it...Joe, rci customs....