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

I switched my clutch from the stock one to the dual force clutch from centerforce. I replaced the z bar as well because I was swapping the engine from a slant six to a 360. Now when I try to push the clutch in there is no resistance and the clutch doesn’t try to come back up. If anyone recognizes what the issue might be I’m not sure