Oct 27, 2023 · The Holley 4-barrel carburetor is one of the most famous pieces of speed equipment ever built. With an unbroken production run spanning more than six decades, this iconic design stretches through the vast majority of hot rodding’s entire history.

Carburetors built for performance! The Carburetor is the foundation of our expansive line of fuel system components!

Nov 19, 2019 · Beyond cfm, Holley four-barrel carburetors are built in multiple different configurations. Let’s look first at the way in which the secondary side of a four-barrel is actuated. Holley builds carburetors using both vacuum secondary and mechanical secondary actuation.

Mar 8, 2023 · If your Holley carburetor is equipped with four idle mixture screws, the procedure will be exactly the same except that the additional two screws will receive the same attention. This is a 750 cfm Holley carburetor that we’ll be using to …

Dec 2, 2009 · Explanation of the identification and differences between a Holley 4250 and 4160 carburetors.

Jan 9, 2020 · Holley offers a selection of replacement muscle car carburetors, perfect for completing that six-pack setup or replacing a damaged unit. Check them out!

Apr 14, 2021 · Holley's Ultra XP 4150 is more than just a regular four-barrel. It's a very trick carburetor that is designed for the racers and the hardcore gearheads. With well-engineered design details and several features that have been asked for, the Ultra XP is a solid option for your air/fuel delivery needs.

Jan 19, 2017 · You'll learn the key to figuring out exactly what carb you have: the list number. It's like a "VIN" for your carburetor and should be hand-stamped on the front of the choke tower to the right of the vent tube on most typical Holley carbs.

Jul 5, 2012 · Cure The Bog And Sluggish Response On Your Holley Four-Barrel Carburetor, By Properly Adjusting The Accelerator Pump Assembly. If your car or truck is equipped with a Holley four barrel carburetor and stumbles upon acceleration, more than likely the carburetor needs an adjustment to the accelerator pump assembly.

These carburetors have been designed and calibrated as a universal replacement carburetor for passenger cars and light truck applications equipped with V-6 and V-8 engines. It is designed for use on “square” flange intake manifolds.