hydraulic clutch in A body
Working on mine slowly also... pull-type slave cylinder with similar bracket made from 1/8" steel plate underneath; Wilwood 3/4" master with reinforcing plate also of 1/8" steel. Pedal has a 2-1/4" piece of 1/8" thick wall pipe welded to it with the center of the hole exactly 2" from the pivot point. There is a nut welded to the end of the pipe, and a 3-1/2" 5/16 Grade 8 bolt passing through to strengthen the extension. Then the 5/16-24 Heim joint is just fastened to the protruding bolt threads with another nut. Guess I will see if this is strong enough without gusseting the pipe or using a 3/16 or 1/4 firewall reinforcement, when I get the hydraulic line run to the slave :) Assuming a 50 lb pedal pressure, which is pretty firm, and a measured 6:1 pedal ratio, that still is only 300 lb on the welded piece.
The other unknown is whether pulling at the original hole on the end of the fork will provide enough travel to fully disengage the clutch. Since I have a scattershield there is no easy way to measure the plate departure directly...