Pete
I can’t comment on the KEP clutch
However I will take the opportunity to note that you’re on the path of typical American style hot rodding. What do I mean by that?
Hot rod the engine for more HP & torque
Start blowing out clutches as the 1st weak link
Fix / upgrade clutch
Start blowing out CV joints (usually 2nd weak link)
Fix / upgrade CV joints to larger 911 / 930 joints
Start blowing up the transmission.
Replace 901 with a 915 trans
You’re already well past the limit of the limit of a 901 trans. I’ve never found the actual torque spec for a 901 that came from the factory but it seems to be accepted that it’s in the 150 lb-ft range.
https://rennsportsystems.com/letstalk/4-how...lutchessscluct/This isn’t to say that 901’s aren’t mated to engines making more torque than that (V8 SBC, 3.0L +, etc) but doing so comes at the price of long term durability and the need to baby the 901 especially in 1st gear.
So, what I’m saying, is carefully choose where you want the “fuse” to be. In my opinion, the clutch is a good fuse. Cheap and easy to replace. If you’re going to have to baby something, the clutch is easy, it gives advance warning (smell and slip), and usually doesn’t fail catastrophically leaving you stranded like broken CV’s or a broken tranny can.
Food for thought.