[Purdy Swoft]

If you want to run negative ground, first reverse the battery cables to negative ground. reverse the wires at the coil and at the ammeter and you will be wired negative ground . The starter doesn't know the difference between negative or positive ground . if you feel that it is necessary go ahead and have 12 volt field coils installed in the starter or install them yourself if you can . you will either need to install a ballast resister at the coil or change to a 3.0 OHM coil . For the brightest head lights you will need to install at least a 60 amp alternator . change out the headlamp bulb to the 60-55 watt halogen bulbs The original type wiring harnesses will work just fine with the wires switched as mentioned above . the larger gauge wire will carry the higher voltage and amps with no problem . All of the parts are available in the common model A parts catalogs . If you choose to use a three OHM coil instead of a ballast resistor , you should be able to get one at NAPA . For better performance , I use the Pertronix flame thrower coil . I hope this helps .