Broken down college kid

I'm not sure if a slant six works the same as my 360 but one thing to check is if you have power at the ballast resistor. I'm sure 67Dart273 will chime in here, his advice is always right on the money :)

You should have around 12 volt at the "run" side of the ballast resistor (usually where the blue wire is connected) with the ignition key in the "run" position (engine off). If you don't have any voltage on any of the ballast terminals your problem is most likely at the ignition switch or at the bulkhead connectors.

If you suspect a faulty ballast resistor, you can temporarily jump the 2 terminals, (hotwire them together) now it bypasses the resistor giving a constant 12 volts to the coil. If it starts and runs, replace the old ballast resistor with a new unit. The ballast resistor only protects the coil so don't worry about damaging anything by bypassing it for a few minutes. (unless you have a points distributor but even then it shouldn't be an issue to run it for a few minutes, please correct me if I'm wrong guys..)