The setup you have won't work. There's too much area not covered by the fan. You need a shroud. The radiator looks too thick, and maybe too small. Hard to tell by the pictures. The thicker the radiator, the harder it is for cool air to travel through it. A Thinner, wider radiator will cool better by itself. Remember, Mopar installed these engines from the factory, so they will cool, if done properly. A 2 row aluminum, as big as you can fit, with a shroud, and a stainless steel fan from Summit, should fix the issues. Summit also sells universal shroud kits.Also, make sure you have a seal between the hood, and radiator support. That blocks the hot air from recirculating back. I don't recommend an electric fan, since you will need a way more powerful fan setup. I've heard of people using one from a Ford Contour. Then you will need to upgrade your wiring, alternator, and add relays, and thermal switches.
Summit Racing® Flex Fans SUM-G4917
