Champion, 3 row, 22" Core, Direct bolt in Hemi swap radiator

I have been talking with Rick from Super Radiator (Super Radiator | eBay Stores), he is in contact with Champion Radiators and they are going to modify the CC526 radiator to be a direct bolt in option for a 5.7 Hemi swap in an A-body for $295 shipped to your door. The radiator includes trans cooler, brass petcock on drivers side, and the inlet/outlet on the passengers side. This would be for a car 5.7 Hemi swap. It looks like this but with the inlet and outlet both on the passengers side
526.jpg
I have a champion 3 row in my 440 dart....it's barely able to keep it cool. Hot texas days it'll creep to 220. I know there's many variables that can cause this...but I'm fairly certain this radiator doesn't have the cooling capacity needed. Fixed Fan, no Clutch, shroud, hood seals in place. Creeps in town and at high ways speeds. I seem to recall finding out the rows are .675"....which is SMALL.