Best cold case/ summit for a 71 duster.

I have a 1971 Duster (auto) that was originally a 318 car but now has a 360LA and was thinking of getting a rad/fan set up from Summit. Does anyone have any recommendations/suggestions as to brand/model? Thanks.
I bought the cold case m750 2 row with 1.50 tubes along with there aluminum shroud kit and wire harness with relay kit my 422 cu. In. 360 runs 180 on hot days and it fits good mine is for a manual transmission all together it was 785.00