Thanks trailbeast, I was thinking the exact same thing about running all of the accessories at once. If it's dark and raining the wipers, headlights, and tail lights will all be on, but most likely the fan will not even be activated so it really come down to finding out how much the contour fan pulls. I have a 20 amp fuse in my multimeter and ran it inline the battery and cable, with the key in the on position and headlights and running lights on, it was pulling 10 amps. I had just convertEd to the 60 amp 70+ style thinking, " this should be more than enough since I don't have AC, electric fuel pump, crazy sound system, and currently the heater hose lines aren't even connected to the heater so really I'm just running MSD, all of the lights, and a few speakers" well I had heard that electric fans only pull around 10-15 amps, I had no idea the contour fans pulled so much more. I'd like to run these since they are OE and I know I can go to the auto parts store and replace it if ever necessary, and I have only heard great things about them. Hopefully someone running these fans can give a more accurate amp number.