Don't know about the Pertronix but I know the Mopar electronic is supposed to have an electronic voltage regulator. If the car has an older black box style regulator I think you can just disconnect it & take it loose from the firewall & look at the bottom. If it has what looks like a couple of strips of metal with coils of wire wound around them it's mechanical. I think there might be visible electronic circuitry on bottom of the electronic ones but I'm not sure.
I ran a Pertronix unit in an air cooled VW & all I had to do was install the parts in the distributor. The car had a generator & a mechanical voltage regulator. This was in the mid 1990's. They might have updated their electronics since then.