Got some work done in the last few weeks and decided to upgrade the thread.
Just got the car back from the shop for the new clutch and flywheel. I couldn't find a specific rule for STF as what we could do in the tranny. Ended up with the exedy stage 1 clutch and lightweight flywheel. It feels way better than my 140,000 mile clutch lol.
Sorry to say, when you enter that Tour, real sure you'll have to enter as FSP; F Street Prepared.
For future reference, if SCCA doesn't specifically say you CAN do something, then you CAN'T.
Street Rules (for clutches) apply to Street Touring cars:
Alternate components which are normally expendable and considered
replacement parts (e.g., engine and wheel bearings, seals, gaskets, filters,
belts, bolts, bulbs, batteries, brake rotors, clutch discs, pressure plates,
suspension bushings, drivetrain mounts, fenders, trim pieces, fuel filler
caps, etc.) may be used provided they are essentially identical to the standard
parts (e.g., have the same type, size, hardness, weight, material, etc.),
are used in the same location, and provide no performance benefit.
The good news is that in FSP there is a BUNCH more that can be done.