It depends how much you want to do with your engine. Are you going to build it, or just use bolt-ons? Do you want to swap it in the future? ect. I have a Centerforce Stage 1 clutch. Its supposed to hold a little more power than stock, and it was 160 with a pressure plate on
http://www.nopi.com . I'm pleased with this clutch. On my old car (85 300zx turbo), I had a Clutchmasters Stage 3 clutch. If you wanna spend some money on a clutch, get this one. It grabbed really nice, and was just as streetable as a stock clutch, and its supposed to hold like 100% more horsepower or something like that. I loved that clutch. My friends personal experiences have been bad with ACT, but there are also people that swear by them. So all in all, if you want cheap get a Centerforce, it works great and I've had no problems. If you want a more serious clutch, get a Clutchmasters, but thats just my opinion.