I installed a; Distributor Cap, Adapter Base, Rotor, and 8mm Spark Plug wires, from a 1984 Ford F350 460 with ECC. My 84 Wagoneer Idles 10 times better now. As soon as the weather clears up I am also installing the TFI Ignition, I just have to adapt it for AMC. Has any one else tried this? If so how did it work out for you?