GET THE ZR1 Clutch!!!!!
Ive been where you are with 2 aftermarket clutches. The ZR1 clutch is by far the best setup I have used. The pedal is as light as stock and ZERO chatter.
600rwhp and I run drag radials for everyday tires.
The clutch is good for a lot more then 700hp. I know Redline Motorsports uses it on some 800hp camaros and lingenfelter runs it on their 10 sec camaro.
I dont sell them, so Im not trying to make a sell. Im just VERY happy with it.