Thanks for your reply. I replaced the towers, shaft, and rockers, I also checked the go/no-go of the rockers and they were good to go. THe car was really running nice after the job. Looking back I thin k that maybe it was just time for one of the compensators to go bad.
To make a long story longer...I think that I may be suffering from a bad compensator. I went back a searched again with a different set of key words. I also reread my post. I have the fattest thrust piece in there, and I still have clacking. It has to be the compensator.
One other thing.....That oiler tube thing is so important, I would not be having this conversation if I had read about them crubling when they got older and clogging the cam tower oil tubes!!!