Clutch not disengaging

Bushings? the plastic half pieces that sort of go around the ball studs? Mine aren't too bad. They're tight-ish. Yes, I do have the wire that holds the bushing and ball stud in place (the one closest to the frame rail. I did have to modify my z-bar for the Doug's headers and it's possible I screwed up.

Ummm ,, I just walked down to check a car I have here,, to confirm that the wire retainer goes on the bellhousing ball-stud,,

I can't remember a z-bar with the clip on the frame rail ball-stud..

Is it possible your z-bar may be in backwards..??? That would explain a lot.

hope he helps