Greatly mod....?
Come on bill,you think I just make this stuff up ?
Black wire goes to the - side of the coil.
Blue wire goes to the "R" run side of the ballast.
2 wires...Easy Pezy.
I doubt a 1986 Dodge truck would have a ballast resistor. My 82 Aries didn't (I recall) and it used essentially the same "spark computer" box.
Please continue and tell him how to wire in the ballast, preferably with a provision to bypass the ballast during cranking using the (non-existent?) IGN2 from his key switch.
If he hates GM, the Ford TFI ignition box is similar, as are many from Japanese cars. There was no similar small "ignitor" box (for coil drive) from Chrysler after ~1980, just the bigger "lean burn" box.
