I'm not sure how other builders route the spark plug wires from either the magneto or the electronic coils - I could see a clean way that I like. With zero experience or knowledge of H-5 aircraft, I decided to blaze my own trail. I needed a way to route those wires thru the sidewall of the fuselage under the engine intake tubes and the picture below shows the approach I decided to use. This mockup was built to minimize the risk of a mistake -there's little room for error.
