acceptable running temperature

[Skipstaxidermy]

What would be an expected/acceptable running temperature for my 1930 "A"? On a typical summer day-- 80-85 degrees--It quickly heats up to 150-160 degrees If I run it a few miles it climbs up to 180 and more though no boil over. If I take a 25 mile trip it seems to run at between 160-180--the hot end of the gauge spectrum. In cool weather it stays around 150 degrees. Is this normal or do I have problems? The engine seems to run well, no oil consumption--Came with the car and was "supposed to be rebuilt" whatever that means! Have new heavy duty radiator installed, I believe ignition to be properly timed. With previous "A"s, had similar experiences--one was bored out to 125 over. The other well, the modern points didn't fit too well causing car not to run at full advanced until we figured it out and had to grind the corners off the points to make them fit in the distributor without binding.Any help and opinions would be appreciated. Skip, in Ohio