Best radiator for a 383
Do a search for this subject. A ton of info. A single or dual core is best, has more surface area than the 3 or 4 cores. Most people don’t like the 3/4 core rads.
As for old school or new school, to each there own. I’m running a BeCool rad and twin electric fans. My car sits at 170/180 all day long.
A friend is running a cold case with a 5 blade fan and has no problems.
So pick what ya want.