UPDATE:
The set up is:
installed in a 1951 3100, a 292, a T5, a cast iron bellhousing and stock truck straight clutch fork (for that 292 motor) and a new under floor mounted power master cylinder.
the problem:
The straight clutch fork fouls the master cylinder when it moves back during operation.
The solution:
So far and this may be updated again but...
seems to be the use of an early corvette clutch arm 1956-1962. this vette arm after it comes out of the rubber boot bends forward quit a bit and has a hole for a clevis or heim joynt fitting (for adjustment) and should clear the new power master cylinder. Later camaro, el caminos and chevelle fork arms are too wide to fit the slot in the cast iron bellhousing, do not bend forward enough and must be modified for adjustment cause they are hydraulic model arms w/ a dimple @ the end location.
I hope this helps you gentlemen who tackle this arrangement.
more later after the tranny is pulled and the set up completed.


Gooday
Caroline & Jim
& Lucinda our 3104
51-3100 inliner @ 4655
small wheel moves by fire and rod,
big wheel moves by the grace of god,
every time that wheel turns round,
bound to cover just a little more ground.