you've probably solved this already.....
but everything I've read says you need a flat type release bearing for clutch covers with radius fingers, and a radius bearing for covers with flat fingers....
Not sure why, but it must have something to do with the clutch being depressed and the bearing moving across the plate, smoother I would think.
when I used the original v8 metal bearing carrier, as the plastic one looked like it would melt....I made this.
A few tack welds on the back to keep it in place, and worked no problem, 300bhp.....
I've now upgraded to T5 gearbox and tilton 60-6100 concentric bearing, although engine build problems stop me from getting engine-gearbox back together.
Anyway if you have solved it great...
regards
scott