Upgrade your classic ride with the premium 1957 Chevrolet Fullsize Engine Harness from Lectric Limited. Designed specifically for automatic transmission with a single carburetor, this wire harness ensures seamless connectivity and optimal performance for your vintage vehicle. Say goodbye to unreliable wiring and hello to a smoother running engine that adheres to the original specifications of your 1957 Chevy. Choose durability and quality that stand the test of time over inferior alternatives.