Holley Quad Fuel Line Chrome 8-21/32in Centers

The Holley Quad Fuel Line Chrome 8-21/32in Centers is a precision fuel distribution manifold engineered for high-performance carbureted engines running multiple carburetors or fuel injection systems. This Racing Power Co-Packaged fuel log serves as the central hub in fuel system architecture, directing pressurized fuel from a single source to multiple outlets with controlled flow and minimal turbulence. Built for serious engine builders and restoration specialists, this component is essential when transitioning from single-carb to multi-carb setups or when upgrading to modern fuel delivery standards on classic muscle cars and street machines.

Constructed from durable steel with a mirror-finish chrome plating, the Holley Quad Fuel Line features a 3/8-inch hose barb inlet designed for flexible fuel line connection and dual 5/8-18 inch inverted flare male outlets for rigid fuel line or adapter integration. The 8-21/32-inch center-to-center spacing accommodates standard carburetor mounting patterns, allowing predictable, symmetrical fuel distribution across multiple carbs or fuel rails. Chrome plating not only enhances underhood aesthetics but also provides corrosion resistance in harsh automotive environments, while the inverted flare design ensures leak-free, vibration-resistant connections that withstand fuel system pressure cycles.

This fuel manifold is ideal for hot rod builders, vintage race car restorers, and enthusiasts installing Demon carburetors or comparable performance fuel systems on Chevrolet small-blocks, Ford Windsor engines, or other high-displacement powerplants. Compatibility with standard 5/8-18 flare fittings and 3/8-inch barb sizing makes integration straightforward with aftermarket fuel pumps, regulators, and filter assemblies. Installation requires basic mechanical knowledge and proper fuel system safety protocols; ensure all connections are torqued to spec and the system is pressure-tested before engine startup to guarantee safe, consistent fuel delivery.