I am looking for clutch recommendations for my 86' hatchback. It has z-spec T-5, 4.10 gears, 275/50 M&H DR. Probably a little over 400hp. First time to the track it went 12.54 at 113.5 mph with a 1.94 60ft, it bogged some and I shifted to 2nd a bit early. It would not shift after that pass, but I did get a 1.72 60ft. I adjusted my clutch some before the last pass, and the clutch disk came apart when I shifted to 3rd. It was an 8 year old FMS heavy duty clutch.