Found my dads original 1971 duster!

So it has been broke in by the engine builder. Am I reading that right? If so that is a good thing. So your wiring harness needs changed to accept electronic ignition. He can’t figure out how to do that. Pretty sure there are kits for that. Maybe someone can chime in.
Yes. The engine builder ran the engine on dyno and says that they did the break in.
The engine builder also provided a complete mopar electronic ignition kit (66991). So I’m not sure what all else he needs to hook it up. Thanks