As it stand at the moment we are going to use a 360 magnum in my sons 72 cuda. The car is a non air car but going to install vintage air. The car has a 22" opening. Will that size radiator handle a built 360 with A/C ?? If we decided to go Gen 3 will a 22" rad work? What radiator is everyone using? It's on the rotisserie now , so if i need to make the change better do it now. but if i dont have to i wont. Thoughts??