Steve... Starting to clean up my engine bay as well. I ordered spark plug wires that should have been the right length but sadly they were too long. I found a youtube video using zip ties to secure wires. The attached picture shows the end result. Basically you wrap all the wires together using one zip tie. Then you add three more zip ties between each of the wires. Slowly tighten down each of the ties until they're snug. It really does a good job of organizing long wires. See below the blue arrow in the pic. Good luck.