Clutch kit opinions

For a 60/40 street/strip car, I would want more clutch disc especially with your 275 radials. That dual friction is organic on BOTH sides, full face organic on one side, organic pucks on the other. I have no doubt it can hold 590 without slipping, but when you do need to lean on it with some slip, that organic puck side can't absorb much heat energy without damage. Better S/S choice would be something like the Ram's version of dual friction, full face organic on one side and segmented metallic pucks on the other.

I would be tempted to remove the weights and try that Centerforce PP with a DF Ram disc, might hit just soft enough without shims to keep the radials stuck.

Grant