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MSD Atomic EFI Billet Fuel Rails

Billet aluminum fuel rail kit for use on LT1 Atomic AirForce intake manifolds. Fits manifold part numbers 2700, 27003 and 27004.

PART# 2725

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$257.00   Suggested Retail
$207.86   Holleydays Price
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MSD's new Atomic EFI billet fuel rails enhance the great looks of your Atomic AirForce intake manifold. Available as rails only, or as complete kits that include all necessary plumbing, these fuel rails are a perfect addition to your engine bay. The bright dip, black anodized finish with laser etched logos will look great for years. MSD Atomic fuel rails feature a 5/8" diameter fuel passage that provides the flow capacity necessary to fuel high horsepower applications making them the perfect match for your Atomic AirForce intake manifold.


  • Billet fuel rails specifically designed for MSD Atomic EFI intake manifolds
  • Bright dip, black anodized finish with laser etched logos for long lasting good looks
  • 5/8” diameter fuel passage provides the flow capacity for high horsepower applications
  • Fuel rails are machined to accept -8 (3/4-16) O-ring fittings
  • Includes mounting brackets and hardware
  • Includes (4) -6 to 3/4-16 O-ring adapters


Emission Code5
Product TypeFuel Rail
WarrantyLimited 1 Year Warranty
Part Number2725



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

• If using tall EV1/Bosch style injectors on LS7 or LT applications, there may be interference on low hood applications as on Corvette and similar. • 1999-2004 applications utilizing a factory supply and return fuel line will require the addition of a fuel pressure regulator when installing MSD fuel rails. • P/N 534-211 - Adapter kit, required when directly connecting Atomic fuel rails to GM factory fuel line quick-connect. Includes (1) 3/4-16 O-ring port plug and (1) -6 to GM quick connect adapter. • SPECIAL TOOL REQUIRED: GM 3/8" Quick-Connect Release Tool to disconnect the factory fuel line (these are inexpensive and available at the local auto parts store). • Fuel rails are machined to accept large -8 (3/4 -16) O-ring fittings (sold separately) - Earl's P/N AT9850008ERL - 4 required.

Warranty Information

Limited 1 Year Warranty: See Details
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         X  Holleydays 2020 20% off and DD
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