Built In Ballast Resistor In Ignition Coil

on mopar electronic Ign the box isn't driving the coil like an MSD, its just controlling ground side or the coil. all you need is a 3 ohm coil and thats it, full 12v to the coil and your good to go.

So with MSD 6A box, blaster 2 coil and their billet distributor no ballast is needed?