I haven't really driven my new GT exept for a very brief lowspeed test drive because the tires are shot and I'm now starting the teardown phase prior to bodywork. The clutch seems to operate properly, but to me, seems like a tremendous force is needed with the left foot to depress the pedal. Maybe I'm spoiled because my MGB has a hydraulic clutch and that pedal is almost effortless.
Are these clutches normally very stiff? And what, other than a rusty or frayed clutch cable would cause excessive stiffness? Of course, when I take everything apart, I can check the cable for binding. The pedal is not at all "glitchy," just very stiff.