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For drivability, throttle response and fuel economy, electronic fuel injection is the way to go. Here the crew at Power Automedia swaps out a carburetor for the FAST™ EZ-EFI® system in their 427 LS-powered Chevelle. They walk viewers through all the aspects of installation, from connecting the first wires to a test drive on the street, and provide a variety of help tips and suggestions along the way.