Clutch pedal mods

hi, when I shortened the upper bar on Z bar, I had no clearance problems with firewall!! my headers are kind of close to lower arm, yet there is room.
btw, back in the OLD days , mopar racers used a 3400 # clutch, they were hard even with stock ratio linkages. I had a 3400# clutch in my 55 chev then, was a brute. just food for thought.