Electrical Demon?

OK, since your Summit box ONLY needs a 2 pin resistor, all you need to do is make sure that the coil is hooked to the correct side. Either that or cut off the extra harness wires and use the 2 pin resistor.

SINCE WE now know that you have a 4 pin box this makes things "somewhat" easier.

One thing you can do is when you have NO spark, try running a jumper (clip lead) directly from a battery source (starter relay) direct to the coil + wire. This will give you a nice hot spark regardless of problems in the main harness.

If it does not, you KNOW it's "right there" in the ignition somewhere, and not in the ignition switch, bulkhead connector, etc.