I also recently got an HEI distributor and coil from Tom Langdon, you couldn’t deal with a better guy!! I went with a set of vintage wires and left my old chrome Mallory coil in the factory location. Mounted the square HEI coil under the distributor and draft tube to hide it, used a black coil wire and glued the fake coil wire to the top of the real coil wire. It looked convincing enough for me