1972 Dodge Dart 4 Door with 28 Miles (Yep 28 Miles)

A stuck clutch is USUALLY not a big deal.

1 Start engine and warm up after fixing bad valve

2 Start car in gear, shift without using clutch to high gear and get up to speed where engine can develop some power, say, 50

3 Push in clutch pedal, floor throttle, if necessary floor/ release throttle a few times with pedal pushed in. Clutch should free up.

If not, probably will have to yank out transmission.

You didn't want to drive it anyway, didja?