Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

I don't know what the fuss is about. I run an aluminum rad. because of the bigger tubes in my 66 Barracuda 360 magnum with no thermostat. I put in a restrictor plate instead. I run a 3/4-inch hole in it for flow control. I have used this in my dirt cars and paved oval race cars. I have no problems with heat or cooling. According to my temp. gauge it stays at 190 degrees. I 'm happy with that.