I have the McLeod street twin and aluminum flywheel as well. It's a nice piece. I got it from Dennis at PPC years ago. He worked with Mcleod wrt to the Pantera specific ZF bell details. Mine was one of the first two he sold and is the Long version not the Diapghram. Holds like a vice but on hot days after a good romping, on occassion the floater plate seems to hang up a bit and make shifting a bit sticky. This can be easily addressed but even though I have plenty of throw, I'll need to pull the engine to make the set up adjustment.
Kelly