In this detailed, step-by-step install video, Rich Bosch upgrades the 400 cubic-inch engine in a '67 GTO to EFI. It's not a numbers-matching car, so finding out that the block actually came out of a '69 Goat was no big deal. Neither was upgrading from a 650-style carburetor to electronic fuel injection, as you'll see when he installs a simple-to-wire complete Holley Sniper EFI system, which comes complete with everything you need, right down to the pump, fuel line, fittings, and even hose clamps. "Filthy Rich" even made it work using some of the cobbled-up factory wiring. Does it fire? Click the play button to find out.