Running Hot?

One step at a time . First : have the rad flow tested . Second : make sure the block is free of scale and rust . third : use a high flow thermostat 160-180*. Forth : high flow water pump . Fifth : clutch fan drive . Sixth : 18" steel fan . Do one at a time until problem is solved . Then and only then upgrade the radiator . Oh yeah , I forgot : fan shroud . Remember, you may not have enough volume to cool a modified engine .