833 hold up to 500hp RB

weedburner said

The OP in this thread says he is a road racer. If his trans has synchros, might want to stay away from a heavy iron disc. Also stay away from any PP that uses straps to anchor the pressure ring, those straps eventually bend/break when you do a lot of downshift / engine braking.

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Disc weight is always an issue and must be accounted for. There are ways to compensate for it, regardless if you use syncros or not. Most guys that road race don't shift with the throttle on the floor, so disc weight is less of an issue as compared to someone shifting with the throttle foot shoved through the floor.