Universal pro spark plug kit features 8mm 24" long wire lead s, with 90° molded plug boots and straight coil boots with brass terminals. Wires feature the Spiro-Pro design which provides 10 times the firepower of carbon core wires and heat protection to 600F. Works with electronic or points style ignitions. All wires have a resistance factor of 350 ohm/ft. Kit is great for magnetos, distributors or dual plug heads. Kit has blue spark plug wires.