The Hayes clutch I had never worked right from the get go, they even sent me a free replacement, same problems. I had the wrong flywheel, the disc was hitting the bolts. The fork pivot was a small block as well as a small block bell. We reused the bell, but the bolt holes were striped and had to be replaced. the z bar ends were out of round pretty bad which caused it to be sloppy. The front shaft was also from a small block.
My motor was recently rebuilt and I have a brand new resurfaced flywheel, so I don't think those are the problem.
I could write a book about all the strange things I have found wrong in this car.
Jim