Upgrade your classic Buick with our Wire Harness Modification Kit for H.E.I. (High Energy Ignition) conversion, designed specifically for 1952 to 1974 Fullsize and Riviera models. This kit offers a reliable and efficient way to improve your ignition system, ensuring consistent performance, enhanced fuel efficiency, and easier starting. Experience a noticeable boost in your engine’s reliability compared to traditional ignition systems, making it a must-have for vintage car enthusiasts.