The standard ignition for our dyno mule is a Mallory HEI high-performance unit, so we stuck with Mallory for the wires, too. This is a set of Mallory's 8.0mm Pro Sidewinder wires. Two sets of boots and terminals are included, but I only photographed the set I planned to use. Unfortunately, I realized right after this photo was taken that the straight boot design for the spark plugs would contact the headers. See, even magazine guys make mistakes.