I needed to fix some wires under my hood and decided to run a cable directly from the battery to the alternator, convert to a 1 wire, run a cable from the battery to the junction block and connect the accessory wire from the starter to the junction block. This makes everything nice and simple. My question now is, i'm installing an aftermarket carb and need to hook up my choke, i have one wire left over from the carb fuel solenoid, is that a 12v source and good for an electric choke? Also what size wire should i buy to feed the junction block? Keep in mind the alternator has a seperate 4awg wire directly to the battery.