Installation Notes for LS1/LS6 Engines
The Atomic AirForce manifold uses a 4-bolt throttle body mount. To use the OEM LS1/6 3-bolt throttle body, MSD offers adapter PN 2709.
OEM fuel rails cannot be used on the LS1/6 Atomic AirForce Manifold. MSD recommends using fuel rails designed for LS2/3 applications.
NOTE: Fuel rail spacers and oversized lower injector O-rings can be used to install LS1 injectors with an LS2-style rail (such as Katech Engines Fuel Rail Spacer Kit KAT-A4096).