Trans cooler question

What Mrmopartech said. I've run that same cooler, hooked up as stated, first with a 904/318 combo and for the past 15 years a 727 and warmed over 360 in a 66 Valiant. I've driven this thing across Canada twice towing a fairly heavy utility trailer, and have never had any overheating problems. I have it mounted about 4" in front of the stock 273 radiator.