Recently added a vintage air AC system, I know the condenser will block some air, but the car is running hot at highway speeds now. Previously, the fan would pull it down from 195+ to 180 in 30 seconds probably, (Taurus e-fan), now it creeps up to 200+ on the highway (70 mph or so) but when I slow down (50 or so) it'll catch up a bit and hold around 190/195.
Only things that have changed recently are the AC system, a new radiator cap, and I swapped to shell rotella 15w40. I have all the OEM AC baffels in (x-panels and the gaurds around the radiator). Car is a 67 coupe, 400, 350 trans, 2.93 gear. Taurus e-fan shroud misses covering the whole radiator by about 1.5 inches on each side.