For over a century, Holley Performance Products has stood at the forefront of fuel systems, earning its reputation as a trusted leader in the industry. Offering a wide range of products, including carburetors, fuel pumps, fuel injection systems, intake manifolds, and much more, Holley has everything you need to turn your automotive dreams into reality.

The Holley HP™ carburetors have set the benchmark for racing carburetors for nearly twenty years. Whether you're powering the biggest names in NASCAR or hitting the track on a Saturday night, the HP carburetors are a fantastic option for all motorsport enthusiasts. With options ranging from 390 to 1000 CFM, these classic HP carburetors boast a contoured venturi inlet that ensures balanced airflow. They also feature screw-in air bleeds for precise tuning, high-flow metering blocks, and Dominator-style fuel bowls that allow for plumbing from either side, making installation a breeze. Holley HP carburetors are the go-to choice for square bore race carburetors, ready to perform right out of the box!

• Gold Dichromate finish for enhanced corrosion resistance
• Optimized race calibration for peak performance
• Contoured venturi inlet for balanced airflow and increased horsepower
• Screw-in air bleeds for accurate tuning capabilities
• Dual 30cc accelerator pumps for extra fuel during initial acceleration
• Dual feed fuel inlets for consistent high-volume fuel delivery
• Four-corner idle adjustment for precise control of your idle system
• Progressive secondaries for smooth off-the-line launches
• Durable stainless steel throttle plates
• Calibrated specifically for gasoline
• 100% wet-flow tested by Holley technicians, ensuring it’s ready to run right out of the box!

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• This carburetor features a square bore flange bolt pattern and can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5 3/16" x 5 5/8" bolt pattern. If your intake manifold is spreadbore style, you'll need an adapter, similar to the Mr. Gasket #1932, to install this carburetor.