ballast resistor

I dont know the differences from a 65 barracuda and a 71 duster, but for me I had two ignition wires, one for when the starter is turning and one for when its just in the run position (Dark Blue one) What I ended up doing after I got rid of the ballast i just connected both sides, other wise, I imagine you can just splice the brown and dark blue together after the ignition switch. My rewiring wont be till later this summer. Hope this helps