Finding switched 12 volt source

yellow rose said
I guess now I’m at the point I need to decide where to grab the 12 volts from, doing the least amount of damage to the OE wiring.

I’m thinking I may just pull the power off the fuse panel. Not sure if that is the best thing to do, or even a good thing...but that’s where I’m thinking I may get it at this point.

Any objections to this? If I’m thinking correctly, if I pull the power from the fuse block, I can leave the wiring at the ballast resister plugged in and just unplug the OE ignition box.

Of course, I could be nuttier than a jar of goobers too.

If your looking for switched 12v power to use as a “run” signal, the coil + wire would do the trick without any cutting of the factory wiring. The coil should be powered from the Mallory ignition box. So the factory wiring would need to be removed from the coil. That is how my MSD box is set up and how MSD instructions show to wire in the new ignition system.