I need some help with an old Dodge truck.

Bob at Hot Rod Wires says I need a new 12V condenser. It looks like I can just use one out of the old 1971 Dart parts?

Can I just use a standard 1970s points condensor?

He also mentioned I need ignition balest resistor.

If we are rewiring this entire truck AND changing the voltage why do we need that stupid resistor?

What dose that thing do again? (All our cars run MSD units now.)

Thanks again for your advice.