still getting hot 500

One thing to consider is sealing the hood to the radiator support as well as the sides too. That hot air can swirl and actually get suck back through the radiator. I have a Northern Dual Pass Radiator with 1" tubes and its not enough for my 451. Have to wait on Griffin since they are out of 1.5" tubes for 3-4 weeks. Im sick of screwing around with radiators that other people say work great on their car and im getting basically a Nascar crossflow 2 row 1.5" tube radiator designed to be used in drafting lol! Dont plan on needing another one.