Upgrade your classic ride with the unbeatable performance and reliability of our 1965 Chevrolet Fullsize Engine Wiring Harness. Designed specifically for the 396 C.I. engine with factory gauges and C.A.C. A/C, this harness supports H.E.I. (High Energy Ignition) systems, ensuring optimal engine performance and efficiency. Say goodbye to the headaches of outdated wiring and hello to a hassle-free installation that restores your vehicle's power and functionality.