67 Dart Overheats!

I think that Cudaman hit it on the head. I've had significant problems with my engine overheating while in traffic. I've got every cooling device known to mankind. Aluminum 26" radiator, Shroud, Brass Works high flow water pump, Engine oil cooler, Transmission cooler (the transmission fluid is mot even going through the rad), 5 blade steel fan and a electric pusher fan in front of the rad. Still the engine would overheat in traffic. It would run 160 to 170 when moving. After trying all of this I found (by accident) the only thing that made a difference and that was the rubber strip that seals the hood to the rad core support. mine was missing because I'm running a fiberglass hood. I just used a piece of pipe insulation held to the rad core support with cable ties as a test seal. It will only cost you a couple of dollars to try. It was a big improvement on my car.

Good Luck!