Running original radiator in my Fairlane, 390/AC car. People at cruises look at it and ask, does that little thing keep that 482 cool?
Overdriving your water pump is inexpensive and easy to do. I found a small water pump pulley, (around 6” OD). The engine cooled down so much I changed my thermostat from a 180 to a 192 version. The ratio between wp pulley and crank pulley needs to be 1 to 1.25 or higher.
I do have a Crites hood with the fresh air opening in front and cut back shock towers but I had those when the engine used to go up to 215 degrees with a clutch fan. ( flex fan currently).