[rpmerf]

Does it crank?
Is not power to the distributor the only issue?

Make sure your battery connections and grounds are clean and tight.

Do your headlights work in each key position? Do they dim when you turn it to start? If they stay lit at the same (or similar) level, there is likely no power to the start position, and I would look at the ignition switch. If they go out, it seems like a large short.

Either work your way backwards or forwards. Get a test light and the schematics, and work your way from one end to the other.

I see NSS was suggested, but I believe NSS will interrupt the starter, but will still allow power to the ignition.