67Dart273 said

There's a "several" ways to do this. So far as the MSD, you can hook the ballast wires together, then take the original coil+ wire and route that to the "small red" of the MSD which triggers the system "on." Main power "big red' goes to hot at all times

So far as the kill switch, I would add a relay to run the engine bay VR/ etc. This is to reduce voltage drop which causes overcharging, and will fit right in with your kill switch

Cut the blue "ign1" "run" wire coming out of the bulkhead. Use the firewall end to trigger a relay. Feed the relay contacts with a fuse/ breaker (say 20A) and mabye no14 or 12 off the starter relay stud. Now for the kill switch. Run two no1 4's up front from the disconnect. Connect them in series with the blue "run" wire triggering the relay coil. Ground other end of coil. Hook the engine bay end of the "run" wire to the NO contact

So pulling the disconnect will drop out the relay and kill both the ignition and the alternator. Nothing can "run on" with that setup



So in the end you cut the blue "run." wire. Firewall / bulkhead end connects to one wire from the small terminals on the disconnect. Other wire from disconnect connects to 86, which is the relay coil, and ground 85, other end of coil

Feed fuse/ breaker power from starter relay stud to 30

Connect the engine bay end of the blue "run" wire to 87

View attachment 1715755028

Click to expand...