When they mentioned today pump gas with 13.5 to 1 compression my butt cringed no
My real 415 HP M.W. 1963 Plymouth Belvedere car never over heated in the Mojave desert racing it at LACR or driving it on the street on the old 100+ Octane pump gas back in the day with all the original cooling system including the original clutch type aluminum seven bladed fan shruggy
Many people who work on cars today don't know which parts work the best, brass and copper radiators will shed a lot more BTU than aluminum will of the same size and construction work

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)