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So today I installed a Volo Performance V12 chip. I can't afford a Unichip. So after 50 miles I don't see a change in fuel economy but it seems to have a bit more power. Anybody else tried this chip?

I am interested in doing a electric fan conversion on my 4.7L. Anyone have any do's or don'ts. Tell us what you are using if you have done it.

Has anyone used or know were to find a 4.7L Underdrive pulley kit? I've tried a couple companies but they have discontinued them.