Help 360 getting hot

1.......8* is surely not enough initial. There are literally dozens of posts on here about this, here's one

http://www.forabodiesonly.com/mopar/showthread.php?t=158842

Look for other posts by crackedback

2....Regardless of the size of the rad, "Oldmanmopar" sometime back posted that he believes fins can work loose and lose heat transfer. I'm convinced that is what was wrong with mine.......on a whim I threw in a used /6 rad and it cooled the 360 / 318 (both mild engines) just fine