Cooling system 1970 340 Dart Clone

That is a really good looking setup! Might I suggest, offsetting the electric fan as close to the rad coolant in, on the the driver side. It might help because if you are in traffic, the mechanicle fan is pulling from the same area the electric is pushing. You would get more radiator coverage, and being closer to the input might help with busting the initial heat out of the rad.