Upgrade your classic ride with the 1966 Chevrolet Chevelle/El Camino/Monte Carlo/Malibu Engine Harness, meticulously designed for high-performance and reliability. This engine harness is modified for use with a GM H.E.I. distributor, allowing you to unleash the full potential of your 327 C.I. engine while ensuring optimal functionality with warning lights and air conditioning. Say goodbye to unreliable wiring and hello to a streamlined electrical system that enhances your classic car experience!