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

Missing info

Car year and model ?
What year bellhousing ?
What year pivot bracket (z-bar) at bellhousing ?
What z-bar ?
What length clutch fork, 12 1/2 or 10 7/8, correct pivot for the fork that you are using.
Clutch rod length ?
Headers? What brand? Correct z-bar for headers?
Return spring for clutch fork?
What starter are you using?
Pictures?
All of these things matter, just went through this.
its a 76 duster
its a quicktime bellhousing
im not sure what year it is I got a new small block v8 z bar bracket from classic industries
The clutch fork is the longer one made for the a bodies I believe 12 1/2
not sure what the length of the clutch rod is it that the threaded rod which is connected to the clutch fork
It has no headers on it at the moment its going to have shorty tight to the block hedmann headers
Im using a powermaster high speed starter, which is normal