I think Centerforce clutches are horrible. Also, when you guys say "stage" this and "stage" that, what are you basing the stages off? What company are you reffering to when you mention "stage"? Ive run several models of centerforce clutches on the street and on the track, and ive always ended up getting rid of it and reinstalling this one old Nissan OEM clutch ive had for 5+ years. Even old as hell, the Nissan OEM clutch never let me down. Its been run on the track and street ever since it was new. Centerforce and their weight technology isnt worth anything to me.
Money spent on a Centerforce setup, is better spent at a local friction material shop on a custom clutch, or save yourself $100's and just go to your Nissan dealer.
IMO, the original poster has no reason whatsoever to run a Centerforce clutch. He just "bought a 280zx 1980" and wants a "race clutch"? Anyone needing a race clutch, would have enough experience to figure that out on their own, and wouldnt be posting asking about "race clutch" on a car he just bought.
Just like Tony D, i digress.....