Upgrade your classic 1967 Chevrolet Fullsize with this premium Engine Harness from Lectric Limited. Designed specifically for big block engines equipped with factory gauges and air conditioning, this wire harness enhances the reliability and performance of your vehicle. With modifications for GM H.E.I. distributors, you'll experience improved ignition efficiency and simplified installation compared to standard wiring solutions. Ensure your restoration project achieves the highest quality and performance with this essential wiring upgrade!