Fuel System Components

Holley EFI 12-878 Regulator Replacement Kit for 12-875 & 12-876 When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make...

Holley 12-876 EFI Fuel Filter Regulator Assembly w/ -8AN When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your life...

Holley 12-875 EFI Fuel Filter Regulator Assembly w/ 3/8" NPT When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your...

Holley EFI Fuel Rails 534-203 Holley EFI Fuel Rails feature 1/2" diameter bore to accommodate high fuel flow and dampen fuel pulsations. Compatible with high horsepower applications. These rails also fit Holley EFI Hi-Ram and LS Single Plain Intake...

Holley EFI LS1 Fuel Rails 534-204 LS1 for Dual-Quad and cathedral port Hi-Ram Holley EFI Fuel Rails feature 1/2" diameter bore to accommodate high fuel flow and dampen fuel pulsations. Compatible with high horsepower applications. These rails also fit...

Holley EFI Fuel Rail Kit 534-218 The Holley EFI Fuel Rail Kit fits Holley LS3 Mid-Rise Intake part # 300-136.  

Holley EFI Fuel Rail Kit 534-219 The Holley EFI Fuel Rail Kit fits Holley LS1 Mid-Rise Intake part # 300-137.  

Holley LS Hi-Flow Fuel Rails For Factory Car Intakes 534-209 The Holley Hi-Flow Fuel Rail kit is designed to fit LS1, LS2, LS3, LS6 & L99 Factory Intakes. The kit includes the rails, hose and fittings.  Features: Bright dip, black anodized...

Holley LS Hi-Flow Fuel Rails For Factory Car Intakes 534-210 The Holley Hi-Flow Fuel Rail kit is designed to fit LS1, LS2, LS3, LS6 & L99 Factory Intakes. The kit includes the rails, hose and fittings.  Features: Bright dip, black anodized...