The Edelbrock E-Force Enforcer Supercharger #15263 dual quad cathedral port unit is designed for Chevy LS engines with cathedral port cylinder heads Black powder coat. It’s a traditional positive displacement supercharger that is ideal for street rods and muscle cars with an LS transplant. These E-Force systems are setup with a dual 4150-style flange and are compatible with either dual carburetors or electronic fuel injected applications. They are designed to be installed on a factory style front end drive and pulley system. Will not work directly with aftermarket serpentine systems. Compatible with Edelbrock dual carburetor air cleaners. They include a newly designed assembly with Eaton Gen VI 2300 TVS internals, manifold, drive pulleys, 10-rib serpentine belt and all the necessary hardware. Available in a natural satin aluminum, high quality polished and black powder coated finish. These systems are sold in several configurations to match your build, whether it’s carbureted or fuel injected. • Carbureted systems include the supercharger housing with rotors and drive pulley, intake manifold with cathedral or rectangular ports and intermediary adapter plate with burst valve. • EFI systems include the supercharger housing with rotors and drive pulley, intake manifold, fuel rails and a high capacity air to water intercooler with a bar and plate design. A heat exchanger is required for installation to cool the intercooler water and is sold separately • Systems come with Corvette belt offset setup and Corvette crankshaft drive pulley adapter.