MSD 2960 Atomic LS7 Master Kit Installation User Manual
Notice, Danger caution, Warning

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Atomic LS7 EFI Master Kit
PN 2960
1 - TPS Sensor Harness
4 - Grommets, Sleeves, and
Mounting Screws
4 - Fuel Rail Brackets
8 - Injector Retainer Clips
1 - Spacer
1 - Shim Kit
8 - 6mm x 12mm Screws
8 - 8/32” Socket Head Cap
Screws
4 - M6 x 100mm Intake Bolts
4 - 6mm x 16mm Hex Head
Bolts
Parts Included:
2 - Fuel Rail Assemblies
1 - Power Module
1 - Handheld Monitor
1 - Wideband O2 Sensor
1 - Weld - in O2 Sensor Bung,
Plug, and Crush Washer
1 - CAN Cable
1 - 4x Cam Sensor Harness
1 - 58x Crank Sensor Harness
2 - MAP Sensor Harnesses
4 - Injector Harnesses
1 - IAT Sensor and Grommet
1 - 4GB Micro SD Card
Not legal for use on pollution controlled vehicles: The MSD Atomic EFI system is not CARB
approved for use on emission controlled vehicles.
Installation of this product requires detailed knowledge of automotive systems
and repair procedures. Installation of fuel system parts and any fuel tank
modifications must be carried out by a qualified automotive technician. Installation of fuel system
parts requires handling of gasoline. Ensure that work is performed in a well ventilated area with an
approved fire extinguisher nearby. Extinguish all open flames, prohibit smoking and eliminate all
sources of ignition in the area of the vehicle before beginning the installation. When working with
fuel systems, eye goggles and other safety apparel should be worn to protect against debris and
sprayed gasoline. The finished work must be thoroughly checked to ensure there are no fuel leaks.
DANGER
CAUTION
WARNING
NOTICE
4 - #12 Washers
2 - 90º -6AN Fittings
1 - 15” High Pressure Fuel Hose
Parts Required, Not Included:
Fuel System: Fuel Pump, Fuel
Filter, Injectors, Injector
O-Rings,
Regulator, and Fuel Line.
Thread sealer for intake bolts.
Thank you for selecting the Atomic LS EFI System! MSD’s Atomic EFI systems are designed with two
major goals; to simplify installation of EFI and deliver better overall performance from your engine.
Simplicity is achieved through wired-less technology to ease installation plus the Atomic is simple
to program with no PC required! Performance is delivered through advanced control of the fuel and
ignition, just as you’d expect from MSD.