The overheating problem came from the radiator I was using. Modified, maybe incorrectly, years ago for my track Alfetta.
So after making shrouding that did no good I had an old, stock, radiator cleaned out and put in. Voila, the overheating is almost completely gone.
Stuck in traffic for 15 minutes on a hot day will move the temp gauge up, but nothing like it was.
Paul Blankenship AROSC
76 Alfetta GT -Track and daily driver; 88 Milano - a continuing project