Thoughts on Cooling a Stock 383 HP Barracuda/Dart.

In the 80's mine ran 230 at idle in traffic in north Fl (Blanding Blvd Mess), Measured with a separate quality gauge. Never boiled over but some times boiled the fuel a tad that caused some vapor lock. Motor pulled apart in 2012 and it looked like brand new after setting 25 years. Like I said 210 is just fine when the temps have been 95-100 in most the country!