Elevate your classic muscle car's performance with our 1966 Chevrolet Chevelle/El Camino/Monte Carlo/Malibu Lectric Limited Engine Harness featuring H.E.I. modification. Tailored specifically for small block engines equipped with H.E.I. distributors, this harness guarantees a dependable and efficient electrical connection that far exceeds standard options in both performance and longevity. Experience a smoother ride while preserving your vehicle's authentic charm—an essential upgrade for any restoration enthusiast.