Champion radiator - I cut her open

no, with a 160 thermostat it will not run over 180. I installed the pushers as an insurance policy. in the end I removed them as the mechanical did all I needed.
if I needed to cool it between rounds I just dropped a box fan in front of the car. this was pretty much a bracket car we occasionally cruised.

A thermostat doesn’t change how hot an engine gets. Thermostat’s set the lower operating temp, not the upper. Which is why 160* thermostat’s are stupid. Why would you want your thermostat open before your engine is up to optimal operating temperature? A properly sized cooling system should be able to maintain temperature, even if the thermostat opens at 195* like the stock ones do.