High flow water pumps do without a doubt work. I've datalogged it here in Phoenix. Think about it...the longer the coolant sits in the jackets; the more likely there will be hot spots. You want to get cooler coolant running through the engine in an efficient manner. Ford actually installed high flow water pumps in some of the old FE engines.They had a cast impeller with a backing plate on the impeller. New high flow pumps are fashioned in much the same way.I agree a 160 degree thermostat is too cold and it will be difficult to achieve the 160 degrees setting without being wide open on a cold day, however I disagree with high flow reducing cooling performance. Higher flow through the radiator will only increase BTU removal. True the differential temperature between radiator inlet and outlet will drop due to decreased residence time, but the log-mean average temperature difference between the air and coolant will increase, improving heat rejection across the entire surface of the radiator and ultimately lowering engine temperatures. Stock coolant flow rates with stock radiators and fans are already approaching diminishing returns since the temperature difference is already down to about 20 deg-F so I wouldn't expect high flow water pumps to really help much unless everything else was upgraded (bigger engine, radiator, and fan). If cooling performance drops with higher coolant flow rates then something funky is going on, maybe pump cavitation.
EDIT: I just saw SWJ01's post came in a few seconds before I posted. I agree, but in a very long-winded fashion.
No. It’s fine. And you don’t have an airflow problem, given your temperatures, they are exactly where they should be.Am I safe to assume this might hinder some of the air flow that should be pushing up in front of the radiator?