No Spark, but have power to the coil?

I am seriously considering buying a kit. I swapped this in from a 74 dart and it has the "dual" ballast resister, and the 5 pin ECU. This means there is several un-needed items in the system.
Im not sure if its ok to use the 5 pin ECU and not use the number 3 pin (green/red wire), and then just go buy the single Ballast resister.
Not only that, which regulator do I use if do that? At the moment I have the 74' regulator.

Its quite irritating at the moment!!!!! LOL I guess at least the weather is making me do my home work prior to getting out there!