LS2 clutch questions.... HELP!!

[black67malibu]

Hello, I just purchased a LS2 out of a 2006 GTO and am putting it into a 67 chevelle. Ive searched and cant seem to find any info on whats necessary to get the clutch to work in my car. With the Motor and trans I also got the stock pedel assembly, slave, reservoir and all the clutch lines. Do I try and put this pedel assembly into the car or do I have to buy an aftermarket setup? also looking for info on what clutch to run. I've serched and it seems the SPEC, monster, and competition clutch seem to be the favorite. Any info would be greatly appreciated..