These Holley carburetors are perfect for racing classes where 2 barrel carbs are required, or for Hot Rodders looking for something different. They have many performance features, such as a manual choke, center hung float bowl, universal throttle lever, all-metal parts, replaceable jets, a power valve, high flow venturii, and a standard 5 1/8 in. air cleaner flange.
Holley's Model 4150 four-barrel carburetors are available in a variety of configurations for street, strip, and track performance. Holley uses their proven double-pumper design to make sure you have all of the fuel you need to keep your engine running its best. Plus, with power-valve blowout protection, a 100 percent wet-flow test, and your choice of mechanical or vacuum secondaries, these carbs set a standard for performance and reliability that's hard to beat.
Designed as a bolt-on replacement for GM's venerable Quadrajet, Holley's Model 4175 carburetors utilize a front-mounted fuel bowl fitting, allowing you to reuse the stock fuel line. Other features include your choice of vacuum or mechanical secondaries, an accelerator pump, power valve blowout protection, a spread bore flange, and a choke. They're available in your choice of universal calibration or direct fit replacement versions, with all necessary emission hookups for 50-state emissions legality.
When car guys think of carburetors, they instantly think of Holley. Holley's model 4160 four barrel carburetors provide maximum performance on street and mild race vehicles. Most of these carbs feature vacuum secondaries with a metering plate that has no jets, power valves, or accelerator pumps. That makes them easier to tune than full race carburetors with temperamental secondary metering blocks and dual pumps. Plus, they're available in your choice of universal or direct fit OE replacement versions with all emission provisions
These Keith Dorton Model 2300 HP two barrel carburetors were made just for Circle Track racing. Per Keith's recommendation, Holley deleted the choke hardware and related machining provisions for smoother airflow, and a brass block-off plate keeps unfiltered air from entering the carb through the choke rod hole. HP metering blocks are reinforced for strength, and are specially designed for optimum fuel atomization. Fuel slosh/vent baffles provide fuel control during hard acceleration and braking. Screw-in air bleeds, stainless steel throttle plates, and power valve blowout protection round out just a short sample of features on these NASCAR-eligible carburetors.
Holley Model 4500 Dominators are probably the most popular racing carburetors on the planet. These newly redesigned models have a reinforced casing for added strength, a redesigned metering system for greater fuel flow, and all-new surfaces that have been machined to improve their appearance and gasket sealing. Other features include progressive mechanical throttle linkage, dual 50cc accelerator pumps, 4-corner idle systems, annular boosters, and your choice of 1 x 4 or 2 x 4 carburetor setups. The results? Sharp-looking, top-of-the-line carburetors that set a new level for performance.
If you've got a slammed ride and like to drop it like it's hot, has Holley got a carb for you! Holley's Low-Rider Avenger carburetors have an exclusive No Trouble design metering block and vent tube to prevent hesitation, stalling and fuel flooding at extreme angles, nose up, nose down, and side to side maneuvers. They also feature a No Trouble choke that ensures great cold starting. Their externally adjustable, No Trouble spring loaded needle and seats promote stable fuel levels for improved fuel control under all conditions. H.V.S. Annular Boosters provide an ultra High Vacuum Signal for incredible low and mid range throttle response and torque. Built in fuel inlet filter and Viton transfer tube seals ensure leak-proof no trouble operation. These carbs also feature chrome fuel bowls with side-hung floats to provide precise fuel control and maintain the classic Holley look. To top it all off, the Low-Rider Avenger carbs have a vibratory polished finish with gold dichromate hardware for a blingin' look.
These Model 4160 marine carburetors include all of the same features as their street cousins--plus a few more that make them adaptable and legal for marine use. Primary differences include fuel bowl vent tubes, sealed throttle shafts, and universal marine calibration. Plus, they're designed to meet flooding and backfire requirements as defined by the U.S. Coast Guard. Other than that, they're typical Holley quality all the way, with a square bore flange, vacuum secondaries, single or dual fuel inlets, an electric or manual choke, 30cc accelerator pumps, and a 5 in. airhorn (unless noted otherwise). And last but not least, you can choose between universal or direct fit OE replacement versions.
Taking some cues from racers and street heroes alike, Holley has taken their own Model 4150 carbs to the next level with the new Model 4150 HPs. Updates include cast main bodies without choke horns, and smoothed venturi transitions for increased airflow. Since they're aimed directly at optimizing power and performance for racing applications, other important modifications include double accelerator pumps, dual fuel inlets, and mechanical or vacuum secondaries.
These OEM musclecar carburetors from Holley are exact reproductions of the carbs that were original equipment on some of the finest cars ever built. Even though the musclecar era ran for only 6 or 7 years, these uniquely American cars are highly desirable among collectors, nostalgia buffs, and those who still want to live in the past. They're built off of the original tooling, and look identical to the original carburetors installed at the factories 30 years ago. Even the OE number is stamped on the casting for the last bit of authenticity! Depending on the application, most of these carburetors are street legal in all 50 states and have the emission identification label prominently listed on them.
Holley's Street Avenger 4-barrel carbs give you trouble-free performance in a good-looking, easy-to-install package. They're calibrated to give you the performance you need, without the tuning headaches involved with other carbs. Features include a tunable metering system, fuel filters in the primary and secondary fuel bowls, center-hung floats, external float adjustments with sight plugs, an electric choke, emissions accessory ports, adjustable secondaries, a power-valve saver, dual-feed conversion fuel line, and more. All of this comes with a silver finish that looks as good as it performs! They're available in many different sizes for a variety of engines.
Holley Model 4150 supercharger carburetors are ideal for the street or the strip. They feature universal throttle linkage, a square bore flange, a manual choke (unless noted otherwise), duel fuel inlets, mechanical secondaries, 50cc secondary pumps, and a manifold-referenced power valve. Plus, they're 100 percent wet-flow tested and calibrated
The carburetor gurus at Holley built these carbs with you truck guys in mind. Features include maximum low-end torque and horsepower output, exceptional fuel control over rough terrain, steep angle idle, spring-loaded needles and seats, four vacuum ports, a one piece fuel bowl vent tube, vacuum secondaries, electric choke, and clear sight plugs.
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