Literally just bought a 1972 240z with an l24, 4 speed, r200 diff swap, dual su carbs, MSA stage 2 cams and springs, and E31 high compression head, and adjustable dump valve for decibel levels. The previous owner said that the car is just barely making too much power for the stock clutch in the car. I had to drive it home from Kansas City to where I live back in Arkansas, I immedately felt the clutch start to slip once I got about 250 miles down the road, it was either on it's way out, I burned