Features:

• Designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads
• Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application.
• Modular design allowing the use of the included plenum entry
• Low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration or to fit under a stock or mildly modified hood in the front-feed configuration
• High volume fuel rails for eight and sixteen injector configurations.
• Mounting hardware included with 3/4-16 O-ring ports (8 AN)and mounting hardware included with 3/4-16 O-ring ports (8 AN)

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

• Gasket Kit, Hi-Ram Plenum O-Ring Cord

  Gasket Kit, Hi-Ram Plenum O-Ring Cord

  Part# 508-21

  $44.53

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• Intake Manifold Gasket Set, O-Ring LS1/2/6

  Intake Manifold Gasket Set, O-Ring LS1/2/6

  Part# 508-23

  $57.29

  Qty: 

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This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

• 1965 and older U.S. manufactured California Certified vehicles
• 1967 and older U.S. manufactured Federally Certified vehicles
• 1967 and older Foreign manufactured vehicle

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

• 1966 and newer U.S. manufactured California Certified vehicles
• 1968 and newer U.S. manufactured Federally Certified vehicles
• 1968 and newer Foreign manufactured vehicle