Hi Joe I have a gold centerforce clutch in my car. The disc is GM and the pressure plate is FE. I had the short block balanced. The flywheel was drilled for both 11 inch GM and Ford clutches. If you break down racing and can't get an FE clutch I can go to a GM and get one. I like the centerforce set up, but for 1/4 mile racing I am going to Mcleod soft-loc setup. It is adjustable for racing and will not blow the tires off the car or breakage to the drive train. The down side is 1300.00$ for the assembly. Good luck with your clutch. ERA sends you their clutch system installed for there car. All you have to do is bleed the system. Have you thought about a hydraulic throwout bearing? I will wait for the answer
Rick Lake