Thermostat vs. No Thermostat ?

Yesterday it was over 90 up here so around town, water is circulating in radiator good and water pump is working as FLOW is good visually in radiator, it's a factory 26" era correct and CLEAN, motor only has 5K since complete rebuild
Thanks!!

If you are having an issue around town it's the shroud/fan setup. If getting a good fan ad a proper shroud doesn't cure it, it'd then look at the radiator. You sad you have a new pump so I wouldn't think that is an issue. The stat is open after 180 degrees so you should probably be running 185 or 190.

How hot is this engine running?