Electric fan controller

Derale.com Has just what you are looking for. # 16789 is a daul fan, daul speed, fully adjustable from 150*-240* with thread in probe.
http://www.summitracing.com/parts/der-16789

I just bought one of their setups for my 408 in my dart. I was have cooling problems with my old downflow radiator with a pusher fan. Moved onto a crossflow with a puller and shroud this time around.

old setup



new setup




If thats the variable speed type of fan, I hope you have better luck with it than I did. Thats the model I just removed, though the one I had was a smaller diameter. It was fine on high speed, but during low speed use, it was very loud and sounded like it was falling apart -like it had bad bearings-.
until I discovered the dual 11" spal, it was the only fan I found that would fit into the space between the water pump snout and the radiator.