this might get long

OK about 4 am this morning my roomy and I decided to take the cuda out I needed to test a carb swap I had done and at the same time just do a banzai launch (cuz he hadnt ever seen the cuda at full potential) . Well he still hasn't ...LOL . After checking there werent any cops in any parking lots and allowing the motor to come to full temp, I lined up in the street and staged at about 4000 and dropped the clutch. The cuda went bonkers, fishtailing across 2 lanes, I banged 2nd gear at 5500 and it was like I was on ice, short shifted 3rd and backed out of it. Decided to press my luck and turned around and went back to do it again. This time I cleared out the motor with about 3 good revs and dropped the clutch at 4500the car reacted and within about 10 feet the motor pulled down like someone had thrown a blanket over the carb. Then the clutch let loose.So I really never got to tell if the carb change was for the better or not. But I have blown several clutches and never have I had it bog down the engine before ...usually it is the opposite and it over revs .

now you have the full idea of what happened hereis the problems . The pressure plate I have is custom made and the shop who did it went out of business several years ago. What I had was a zoom pressure plate they re-worked with 3800# of pressure (spings) and some kind of centrifical do-dad that increased the clamping force with rpm. The highest clamping force I find now is like 2750
so question 1..what are you guys who race using for a pressure plate?

question 2 ... While I have the tranny out I am going to re bearing it to get rid of a noise I have at about 2500 rpm ....who do you recommend for parts and somewher I read about the first motion bearing being .030 too wide for the snap rings unless you get it from Ma Mopar ...anyone know anything about this????