Right. The thermostat IS the restriction. So why is leaving the coolant in the block longer a good thing? When you answer that you’ll get it. I’ve typed it out and so have others. The less TIME the coolant spends in the block the less heat it carries to the radiator.
If that is the case just remove the thermostat and let the water flow.
I would like someone to do that and see what happens and let us know.
