Installed new dual friction center force clutch clutch pedal is now very soft and doesn’t come back

They make a couple of different lengths of adj. rods, yes, it's the threaded rod.
Your zbar, is the lower arm at the end of the tube closest to engine? Or is it back a couple of ins? Mike said that you gotta get down there and see what it's doing.
Are things lined up, does it look right? Have someone push in the clutch while your down there and see what is happening.
I have a Lakewood scattershield and ended up with the 10 7/8 fork. There are specific pivots for each fork.
Pictures would be nice.
Pm some pictures to me, or post them.
I have to be somewhere soon. Will try to PM some pictures of mine when I get home.