318 poly wide block

When I got down there I was trying to move the fork back when I had the rod disconnected but it wouldn't budge. But I am only a 5'2" and 100 lb woman I'm strong but not like crazy strong especially in the position I have to be in to reach it from underneath or above

There should be some forward and rearward movement of the clutch fork, it also needs to be properly engaged in the release bearing on the input shaft. Sounds like the release bearing is bound on the shaft which is what 67 Dart273 had previously mentioned. If that bearing is frozen on the shaft, the trans will have to come out I am thinking,
that and the fork may be bent/ boogered up from trying to work the clutch.