One can debate about cooling efficiency but.. Mopar designed an adequate cooling system the challenges are when engine modifications are done.. We have found often the cooling problems are related to incorrect ignition timing and/or lean fuel mixture. IMHO.. Today it is difficult to find an experienced mechanic that will take the time to diagnose and correct that doesn't cost major $$...
Just my $0.02...
Excellent point. "back in the day" it was very rare to find a Mopar performance car (or most any other brand performance or standard car) that had over heating issues in standard trim. They all knew about heat and thermal issues down to having power steering coolers, and transmission cooling etc., They were always on top of those potential issues to the point of even being on the over cautious point.
