Thank you for purchasing the MSD Atomic EFI Throttle Body. The throttle body features integrated fuel rails, injectors, ECU, and sensors to minimize the diffculties associated with converting carbureted fuel systems over to Electronic Fuel Injection. Since the Atomic Throttle Body uses a standard 4 bolt pattern used by most carburetors on the market today, the Atomic Throttle Body is a true bolt on design.

Parts Included:

1-Atomic EFI Throttle Body

1-Intake Manifold Gasket

1-Air Cleaner Gasket

Parts needed but not included:

4 – Retaining Stud Kit for the throttle body

Fuel system: Fuel pump, fuel flter, fuel line,

fuel pressure regulator (return system)

Atomic EFI Power Module

Atomic EFI Handheld Programmer

Throttle linkage connection/brackets

Ignition system

The Atomic Throttle Body has a 4160 bolt pattern and will ft most 4 barrel manifolds. It is designed to accept common throttle linkage adapters and brackets. A throttle ball stud is supplied but no other linkage components are included. Accessory kits are available through many accessory or carburetor companies. There are two fuel inlets, a forward and rear fuel inlet. Only one needs to be connected on a PWM style system as fuel is delivered to either side through an internal fuel rail. On a return style system, an additional -6AN O-ring ftting will be required to run the fuel through the other rail into the fuel pressure regulator. The passenger side of throttle body, where the MSD is machined, is the Electronic Control Unit (ECU). This block houses the ECU of the Atomic Throttle Body.