one box or two

YOU NEED THE VOLTAGE regulator.

hey guys, I'm putting a 440 into my 70' Dart. I purchased a electronic ignition set up for it which came with a distributer, wiring harness, electronic box and a balast. My question is do I still have to connect the original electronic voltage regulator and balast up in the drivers corner of the firewall that was original equipment on the car or do I due away with them with the new system? The alternator requires an external voltage regulator so I'm not sure if the new electronic ignition system covers everything I need. Thanks!!!!!