EFI conversions made easy Holley Sniper EFI 600 hp systems are true carburetor replacements. Good for up to 600 hp, these 4-injector throttle bodies simply swap out your current 4-barrel carburetor for EFI performance. You don’t have to mess with the ignition at all. It’s too easy not to go for it Holley Sniper EFI 600 hp system. Includes Fuel Line Kit plus Fuel Tank with a built-in Fuel Pump. Also, buy our Mustang EFI Conversion Kit. Additionally, the kit supports the nostalgic aesthetics of your Mustang, seamlessly blending vintage charm with modern technology. TD Motion is known for its commitment to quality, and this swap kit exemplifies that dedication. Each component is built to last, ensuring your Mustang continues to perform for years to come.