Well, the Radiator is a Brass/Copper NOS, originaly made for a 1973 Jeep Grand Wagoneer running a 400 CI engine. It has Dual Flex-A-Lites fans that had been mounted and cooling a 440 in a '71 Challenger.
My Dart's engine is a 383 that's been bored .060 over, with a few power adders.. 8)
It runs OK temps without the "wing", and has done so since we built it in 2005, but it just runs cooler average temps with it.