Okay, I bite:
I used a radiator from a local Hyster forklift which has almost the dimensions of the CSX car ($230). I mounted it at an angle like on a CSX car, added one 16" pusher fan and sat at idle through 3 red phases at the traffic light with ambient 107°F during the first test drives.
Thermostat 180F, motor 427FE.
I like to keep the upper section of the radiator duct away to let air vent the engine bay.
That car has the small 427 hood scoop.
Sump/oilpan is stock 390FE, moderate cam, estimated 350Hp. Total timing 36 deg, 10 or 12 deg at idle (I forgot). No
oil cooler. Underfloor exhaust with block hugger headers.
If people debate pusher vs pulller fan, I cringe. If your cooling system is that marginal you have a bigger problem.