Newbie here...can't get clutch to disengage...

How much peddle travel do you have? I would suggest your problem lies in the peddles or perhaps length of peddle rod to z-Bar??

When I adjust the linkage to give 5/32" free play at the clutch fork, the pedal has about one to 1.5" of free play.
I have full pedal travel, meaning it goes all the way to the floor.
Even if I take up all the slack at the fork, it still does not disengage the clutch.
I've got to figure out a way to get more stroke out of the lower arm. The only way I can see to do that is change the pivot points on the Z-bar.
But, because everything is brand new and specific to the A-body, it should be working and it's not. That's what is driving me crazy.