I also have a Wizard radiator, 22" with 1.25" cores. Had to run a pusher style electric fan in front of the radiator as would have been too tight otherwise, but also cleans up engine compartment. I run a thermostatic fan switch at 185 on and 165 off with a 160 thermostat and have had zero issues so far. By the way I tried a few Champion radiators but they were twisted and although the Wizard is more expensive it's a superior piece.