Dart over heating???

I tried the 3500 cfm zirgo fan between the rad and engine and it didn't work out very well. Now I didn't try the elec fan with the Mopar shroud so that is a thought but I did however install the elec fan on the front of rad as a back up just in case.

see i'm the opposite, i had zero luck with any form of mechanical fan...and my electrics have always worked amazing,even some junkyard fans as pushers.
another note..i've heard that a elec in front, and mech in back, can actually cause more problems by causing turbulent air to just tumble through the radiator instead of neatly flow.