In case you get to spend again...
I use Centerforce dual-friction clutches on all my big block cars. In fact most of the high horse power stick shift cars I know of use Centerforce. They can hold a tremendous amount of torque and horsepower. I have used them for years with no problems what so ever. Peddle pressure is on slightly firmer than stock. Of course I haven't put one on my Supra yet but I probably will. They run $470 from Jegs or Summit Racing.