The Stovebolt Site Forums The Shop Area The Electrical Bay HEI (high energy ignition) wiring question

There is a yellow wire coming of the HEI in my 63 GMC (327 engine) Does anyone know where that wire goes to? Does it go to the ignition switch (if so which leg) or does it go to the battery. Thnaks for any help!
Shane Hamilton
Warrensburg Missouri

PS, my truck is close to being road ready for the first time!