4 speed ka-booom !

I modded my CenterForce diaphragm pressure plate to be a pseudo soft lock. And I shelved the CFII disc. Between the two of those, they were breaking stuff on the street, with 295s. Two 833-O/Ds, one r&p, & 1 yoke; Gone! On the plus side it made a heck of a chirp going into third. That always impressed passengers.That would be about 90 mph with 4.30s.
The CF has flyweights,that increase the clamp load with rpm. If you dump the clutch at an rpm where the flyweights are out, it really slams the disc. If the disc takes it,the torque goes out and slams the driveshaft, which.... well you get it. So the cure for me was a factory 340disc (remenber I'm a streeter) and I shimmed the pp away from the big fat factory flywheel about .040 or so, using plane old washers.
What I discovered was that the flyweights come on about 2500 to 3000 rpm. Now I can blip the throttle and dump the clutch and drive away like it was no biggie. That pos 30# flywheel stores enough inertia to launch the car, and the pseudo soft-loc lets it slip enough to not be hard on my neck.Another nicety is the engine will pull the car around on hard ground, at an idle, without slipping the clutch, and without stalling,lurching, or generally acting like a pos. Naw, the big flywheel and the "slipper" clutch take all the fuss out of the beast,lol
The 340 discs have a limited lifespan, as the spring pockets usually split open and eject the springs, after which it vibrates. Yeah the clutch occasionaly slips when I don't expect it too, but around 2500 to 3000 the flyweights take over, so no biggie. And it's not really adjustable. But I don't need a $2500 clutch for what I'm doing, cuz I'm a streeter.So I'm probably talkin' through my hat, as they say, or something like that.
But I haven't broken anything, besides clutch discs, since about 2005 or possibly 06. And the powertrain hasn't been opened up since either. That'd be about 100,000 miles ago. No typo there.