All good suggestions for things to look at. I understand that on this car you can't sort this issue by moving the wheel on the column. I mentioned that to point out that it is not possible when every connection from the wheel to the steering box is keyed.
I thought I might adjust it at the rag joint too, which I replaced when I had the motor out....no soap.
This is a seasonal car for me, so I think that this summer when I'm not driving it I will replace the tie rod ends, which will give me the excuse to straighten this stuff (pun intended) out. I've been driving it this way for a long time, a few more months won't drive me nuts.
Thanks again for the suggestions.