Not Enough Clutch Travel

The picture is of the spacer I welded to the clutch pedal that pushes the master cylinder pushrod. I'm using a pull type slave cylinder attached to the tranny crossmember to pull the clutch fork. The master cylinder is Wilwood 260-1304, the slave cylinder is Howe 829. They both have a 1.375 stroke. I'm getting a full 1 inch at the clutch pedal measured at the master cylinder pushrod and 3/4 inch pull at the clutck fork. Does anyone think the pressure plate may not be releasing? I called a local clutch shop and was told they could test the pressure plate. I may do that before I swap master cylinder.

In my 440 with a 10.5" clutch the fork ratio is about 2:1.
I'm using the same master and a different slave with the same specs for bore size and throw.
I had about 1" pull on the fork at the original attachment point with the pull slave and it wasn't enough for the Centerforce DF clutch. My master did not have anymore movement so I redrilled the clutch fork to make it 1.5:1 ratio and it's working with clearance for the throwout.
The clutch pedal is stiffer than I would like it but it is working fine.
I could not drill the clutch fork in the car because it's hardened steel so it had to be removed to work on it.