I run a 22” stock 66 273 radiator that had the lower hose outlet switched for the newer 70 up pump...my stock radiator was recorded with a 2 row high flow efficiency core, I have a high flow water pump and a stock 4 blade fan in front of a 400 HP 340 and it ever gets above 200 even on the hottest days, no fan shroud...copper cools better than aluminum...sometimes the aftermarket stuff is wasted money, plus, my radiator looks stock and fits perfect in the stock location worth no mods to the core support in my 66 Valiant
