Since last post I drove it and when the engine rpm got high enough ( 2500 or so ) the ammeter center itself like it should be and has been hovering there since... Rechecked the voltages and they stayed set as per the shop manual...
1954 Chevy 3104 3 Window Hydra-Matic in my family for over 60 Years
Once in a while you get shown the light in the strangest of places if you look at it right... "Scarlet Begonias" Grateful Dead 1974