Assembled Ignition Wire Conduit Kits. Threading ignition wires through the original-type center conduit and installing spark-plug ends is a fairly tedious task that many owners simply dont want to tackle, so weve done all the work for you with our ready-to-install ignition wire conduits. Simply remove two cylinder head hold-down nuts, install the conduit, attach the wires and youre ready to go. We use top-quality 7mm plain black wire and original-type straight or right-angle spark plug ends as per original. We even include the correct rubber boots (where applicable) for the spark plug and distributor cap terminals.