Car is a 1929 Tudor w/ a 1931 engine; 160* thermostat (w/ 3 weep holes), 4-blade fan, fan shroud, side pans, clean radiator, 50/50 anti-freeze & a new water pump.
With a probe in the radiator water, I consistently get 192* at 80-90* ambient temperature with the engine running for 10-15...