Thanks again for all the advice. Took a look at the Summit,
(sum-820055) starter yesterday, that may solve the problem. I'm a little concerned about clearance with the
oil pan... although the starter has a lot of adjustability; won't really be able to tell until I get the body back off in a couple weeks. I'm starting to think that I have just fried this (rebulit/stock) starter over the last year or two; either it wasn't grounded well enough and/or just couldn't crank the higher compression engine... especially when it was hot.
Dan