Holley EFI Fuel System Plumbing Kit SKU: 6661

Holley EFI Fuel System Plumbing Kit

When you’re ready to take your EFI system seriously, the Holley EFI Fuel System Plumbing Kit gives you everything you need to fuel your build the right way. Designed to work seamlessly with Holley Sniper EFI and Holley EFI systems, this complete kit combines Holley’s trusted pumps, regulators, and filters with the high-performance durability of Earl’s Vapor Guard™ hose. It's a no-compromise solution for do-it-once, do-it-right EFI fuel delivery.

Built for tough modern fuels and high horsepower demands, this system is rated to support up to 800 horsepower naturally aspirated and 600 horsepower in forced induction applications at 43 PSI. Whether you’re wiring up your street machine or prepping for race day, this kit provides the components and confidence to keep your EFI system flowing.

• Complete plumbing kit for EFI conversions – Designed to work with Sniper EFI and Holley EFI systems.

• Includes 12-920 high-performance fuel pump – Flows 67 GPH at 43 PSI.

• 20 feet of 3/8" Earl’s Vapor Guard™ hose – Multi-layer barrier protects against heat, fuel vapors, and hose degradation.

• Includes pre and post fuel filters – Keeps your system clean and running reliably.

• Bulkhead return fitting and all hardware included – Everything you need for a clean, reliable install.

• Fuel compatibility – Safe for pump gas, race gas, diesel, biodiesel, methanol, ethanol, and gasohol.

• Not compatible with E85 fuel – Use only with approved fuel types.

Performance Specs:

Built for Holley EFI systems, this fuel delivery kit includes everything you need - pump, hose, filters, fittings - for clean, reliable, high-flow performance.