I switched the fans because I could not get the electric fans to cool at road speed. Ran 218-220* most of the time. If I stopped or slowed, temp would pull down to 200-210. Flex fan cools much better ,205 max, but it does cost a few hp.

http://www.youtube.com/watch?v=aIxaesJ190U

http://youtu.be/lCZAaN7fFLg