1974 Brain Box saves the day.

Here is the factory 4 pin ballast resistor with the 5 pin mopar style brain box as set up originally.

I bought this truck from the original owners, all original so I know it had not been changed.

Is this the proper setup for 1976, 4 pin ballast resistor with 5 pin Brain Box?

The top of that 4 pin ballast resistor gets hot and the bottom of it stays cool. Guess that is the way it is supposed to work creating resistance so it goes easier on the coil while running.

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This is the way it was wired when I bought it and had the 5 pin '76 brain box on it.