MSD Ignition has led the automotive world in performance ignitions for over 40 years and now we are rewriting another industry standard. Introducing Atomic EFI a throttle body kit designed to update engines using outdated carburetors with all of the modern benefits of a fuel injection system. Current aftermarket options to convert a vehicle to EFI can be difficult and time consuming, but with the all-new Atomic EFI all that will change. Atomic EFI was designed for the average car guy, like you. Installation is easy and replaces a 4-barrel carb with just basic tools. Also, instead of having countless sensors, we incorporated the TPS, MAP, IAT, and more right in the throttle body so that you don't have to worry about installing them. Atomic EFI  features a returnless fuel system, which means you can keep your existing fuel tank pickup and never have to modify the gas tank.