'69 340 Swinger 4-speed clutch linkage

What kind of clutch set did you use?
Diaphragm or borg and beck?
Borg and beck is factory and has a 3 finger pressure plate, diaphragm has lots of fingers all around the pressure plate.
What was the linkage like before you replaced the clutch set?
Are you sure the disc is in correctly?
It almost sounds like to me the z-bar (bellcrank) is in backwards.