Originally Posted by IMWEZL

I don't have a Southbend clutch on my Z but I used to run one on my (don't laugh) SRT4. It was a Southbend Stage 5 with an Steel Flywheel and it handled more than 10K miles of 448whp and 494lbs tq. Never had a problem while autocrossing either...of course I dialed the boost way back. Clutch never let up on multiple 11.8xx passes at 120+mph.

I just wanted to add a little input on the SBC and say they are really great.