Do all 67-69 small block Barracuda's run hot? Rant

My rad, shroud,and 7-blade fan all are circa 1973 teener A/C stuff. There are three non stock items in the system; The Milodon pump and stat, and the Ford Thermostatic clutch.
The pump is just an 8 blader with an anti-cavitation plate.
This combo flat out works.