Hi. Auto electrics are not my forte. My A12 has a scorcher HEI dizzy and coil. When I got the car the thermo fan was running the power wire from the positive terminal of the coil. When I swapped the scorcher set up over I left i this way. Everything is working but I'm not sure if this is the best set up with all that load off the coil. Would running the thermo power straight off the back of the alternator be a better option. Any help greatly appreciated..