451 motor

I'm curious on your suggestions on keeping a big block cool in the small grill of a 67
dart. I already have had issues with my stroked 408 and griffin radiator so I need to
know now what will I need to cool a 440 with 4000 stall convertor, reverse pattern 727 with a transbrake/linelock, and SFI Superbell from JW Transmission to keep my feet.
At the starting line down here in West Palm Beach/ Moroso international things get a
little HOT. Arnold