AN6 Dual Feed Carb Fuel Line & Vacuum Gauge – Holley 4150

AN6 Dual Feed Carb Fuel Line with Vacuum Pressure Gauge – Built for Holley 4150 Carburetors

Upgrade your carburetor fuel delivery with this precision-engineered Braided AN6 Dual Feed Carb Fuel Line — designed specifically for the Holley 4150 carburetor. Featuring a built-in vacuum pressure gauge and a robust aluminum alloy construction, this kit ensures smooth, leak-free fuel flow and reliable engine performance whether you're on the track or the street.

Why Choose This Dual Feed Fuel Line Kit?

• Direct Fit for Holley 4150: Designed as a direct replacement for 4150 Holley carburetors, compatible with AN6 or 3/8" hoses — no fabrication required.
• Lightweight Aluminum Alloy Construction: High-strength aluminum alloy keeps weight down without sacrificing durability, easily handling high-pressure and high-temperature fuel environments.
• Optimized Fuel Flow: The fuel rail geometry has been carefully engineered to minimize resistance and pressure drop, boosting fuel supply efficiency and engine combustion performance.
• 7/8"-20 Threaded Fittings: Precision-machined 7/8"-20 threads provide a tight, secure seal with matching connectors — no more worrying about fuel leaks or loose connections.
• Integrated Vacuum Pressure Gauge: The included vacuum pressure gauge allows you to monitor fuel system pressure in real time, giving you peace of mind and helping you tune for peak performance.
• Double Pump Ready: Supports dual fuel pump setups for high-performance and race applications demanding consistent, high-volume fuel delivery.

Specifications

What's in the Box?

• 1× Dual Feed Carb Fuel Line Set
• 1× Vacuum Pressure Gauge

Perfect For

Hot rods, muscle cars, race builds, and any performance engine running a Holley 4150-style carburetor. Whether you're upgrading from a worn OEM line or building a new dual-pump setup, this kit delivers the reliability and performance you need.

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For more information on fuel system safety and best practices for carburetor maintenance, visit the U.S. Consumer Product Safety Commission (CPSC) for guidance on automotive fuel system safety standards.

Learn more: Fuel line

Frequently Asked Questions

Q: Is this AN6 dual feed fuel line compatible with all Holley carburetors?

A: This dual feed carb fuel line is specifically designed for the Holley 4150 carburetor with 7/8"-20 threads. It supports AN6 or 3/8" hoses. Please verify your carburetor model and thread size before purchasing to ensure compatibility.

Q: Does the kit include the vacuum pressure gauge?

A: Yes! Every kit includes 1× Dual Feed Carb Fuel Line Set and 1× Vacuum Pressure Gauge. The gauge lets you monitor fuel pressure in real time for safer, more efficient tuning.

Q: What material is the fuel line made from?

A: The fuel line is constructed from high-strength aluminum alloy, which is both lightweight and highly durable. It is engineered to withstand high-pressure and high-temperature environments typical of performance fuel systems.

Q: Can this be used with a dual fuel pump setup?

A: Absolutely. This fuel line kit is designed to support double pump configurations, making it ideal for high-performance and racing applications that require consistent, high-volume fuel delivery to the Holley 4150 carburetor.