clutch linkage

Still having the adjustment issue. Had my wife work the clutch tonight and noticed two things. It appears that when the clutch is depressed, the z-bar doesn't just rotate around the ball stub, it appears to flex forward as it rotates. Also it appears like the firewall by the brake master cylinder looks to flex a little also. This is a Centerforce clutch, over center spring has been removed. Clutch pressure does not seem hard to me. New Brewers pedal assembly. Z-bar is probably an inch out on the fender side ball stud. Will be Sunday afternoon before I get a chance to tear into it, will take the z-bar off and inspect it. Has anyone seen this before, or have ideas what to look for?