QUICK FUEL Q-950-AN Cfm Carburetor Annular Booster 4-BARREL 4BBL

( Brand: Quick Fuel ), ( Manufacturer Part Number: Q-950-AN ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Material: Aluminum ), ( Features: Down Draft ), ( Universal Fitment: Yes ), ( Country Of Origin: United States )

Review QUICK FUEL Q series 950 Cfm 4-barrel Carburetor Annular Booster

The Q-Series 950 CFM 4-Barrel Carburetor, specifically model Q-950-AN by Holley, is a high-performance fuel delivery system engineered for serious racers and hot rodders. This quad-barrel carburetor boasts an impressive 950 cubic feet per minute (CFM) airflow capacity, providing ample fuel for large displacement engines or high-RPM applications.

This 4-barrel carburetor is equipped with a 4bbl annular booster, which increases the vacuum signal to the carburetor, allowing for a larger fuel metering range and improved atomization. The annular booster design also provides smoother idle and transition qualities, enhancing the drivability of your vehicle.

The Q-Series 950 CFM 4-Barrel Carburetor features Holley's advanced vacuum secondary design. This innovative technology allows for a larger primary and secondary metering range, ensuring precise fuel delivery under various engine conditions. The vacuum secondary design also provides a smooth, progressive power band, making it an excellent choice for both street and racing applications.

The Q-950-AN carburetor comes with a 4-inch, polished aluminum main body and 3-inch throttle bodies. The throttle bodies are equipped with 1-7/8-inch diameter bores and include Holley's advanced progressive linkage system for smooth throttle response. Additionally, the carburetor is compatible with Holley's electronic fuel pressure regulator, allowing for easy tuning and adjustability.

The Q-Series 950 CFM 4-Barrel Carburetor is designed for easy installation and customization. It includes a mounting plate with pre-drilled holes for popular applications, as well as adjustable linkage brackets for fine-tuning the throttle response. The carburetor also comes with Holley's signature blue gaskets and mounting hardware.

In summary, the Holley Q-Series 950 CFM 4-Barrel Carburetor with 4bbl annular booster (Q-950-AN) is a high-performance fuel delivery system that offers impressive airflow capacity, advanced vacuum secondary design, and smooth throttle response. Its customizable features, ease of installation, and compatibility with Holley's electronic fuel pressure regulator make it a top choice for racers and hot rodders seeking optimal engine performance.

The Q-Series 950 CFM 4-barrel carburetor with annular booster, manufactured by Holley, is a popular choice among automotive enthusiasts for high-performance applications. Like any other automotive component, it has its advantages and disadvantages.

1. High Airflow: With a flow rate of 950 CFM, this carburetor is capable of delivering a substantial amount of air and fuel mixture to the engine, which is beneficial for high-performance applications.

2. Fuel Efficiency: The annular booster design provides improved fuel atomization, which results in better combustion efficiency and potentially improved fuel economy.

3. Adjustability: This carburetor offers a high degree of adjustability, allowing users to fine-tune the fuel mixture to optimize engine performance under various driving conditions.

4. Durability: Holley carburetors are known for their robust construction and are designed to withstand the rigors of high-performance applications.

1. Complexity: Due to its high degree of adjustability and advanced features, this carburetor can be more complex to install and tune compared to simpler designs.

2. Cost: This carburetor is more expensive than some other options on the market, which may be a consideration for budget-conscious enthusiasts.

3. Requires Expertise: The tuning process for this carburetor can be challenging, and it may require the expertise of a professional tuner or a significant investment in learning the process yourself.

The Holley Q-Series 950 CFM 4-barrel carburetor with annular booster is an excellent choice for high-performance applications that require a large volume of air and fuel mixture. Its advanced features, such as the annular booster design and high degree of adjustability, offer significant benefits for optimizing engine performance. However, its complexity and cost may be a consideration for some enthusiasts. Ultimately, the decision to purchase this carburetor depends on your specific application requirements, budget, and expertise level.

If you're looking for a high-performance carburetor that can deliver a large volume of air and fuel mixture and offer advanced tuning capabilities, the Holley Q-Series 950 CFM 4-barrel carburetor with annular booster is an excellent option. However, it's essential to consider the complexity and cost associated with this carburetor and ensure that you have the expertise or resources to properly install and tune it. Alternatively, if you're looking for a simpler and more cost-effective option, you may want to consider a different carburetor design.

Details:

Art Number: Q-950-AN Part Type: Carburetor Line: Quick Fuel Q-Series 4-Barrel Carburetors UPC: 1 cfm : 950 Gasoline Barrels: 4 Flange: Square Bore Choke: None Secondary Mechanical Inlet: Dual 7/8-20 thread Booster Annular Carb height : 3.250 in. Throttle Linkage: Universal Ford Kick down: No Color: Tumble Polished Quantity: Sold individually. Screw-in idle high-speed air bleeds. Mechanical secondary double pumper style.

Location: Thousand Oaks, CA, USA. Sold AS IS exactly as shown in photos. Listing includes only the items shown in photos. This is a high-performance, mechanical secondary carburetor built for serious street/strip and race applications.

Condition: Pre-owned performance carburetor.Shows normal signs of use.Throttle linkage moves freely. Pistons Thomas Hildebrand Burns Bell Helmet, Schroeder Borden Spading Moon Equipment, Drag Racing Fuel Hand Pump Pressure Pump, Indy 500 Car Midget Quarter Sprint Offense 3416 Nail head Buick, Buick Low rider Hot Rod Custom Social Cruiser, Dragster Gasser Altered Race Car, 427 Mustang Cobra 392 426 383 454 Ford Chevy Weaned Navarro Meyers, Tatters field Knudsen Hartman Collins Infield, J.E. Billet throttle base plate. 4-stage emulsion system for precise Fuel control.

Performance Features: High-flow main body with blended venture area. Dual AN-style Fuel inlet setup. The Q-Series is known for its high-flow main body, billet components, and precise Fuel metering delivering strong throttle response excellent provability. CNC-machined billet metering blocks.

Jetting Calibration: Primary Jets: 78 Secondary 86 Power Valve: 4.5 Hg Plug Outer Air Bleeds: 70 Inner 32. Accelerator pump discharge nozzles. Quick Fuel Q-Series carburetors are popular for their combination of performance and provability, making them a strong choice high-horsepower small block or big builds. Annular boosters for improved itemization.

part #: q950 prices

• $400.00-$1378.64

specifications carbcoon:

• brand: Quick Fuel
• mpn: Q-950-an
• type: Carburetor
• mounting flange type: Square Bore
• material: Aluminum
• features: Down Draft
• universal fitment: Yes
• country of origin: United States

shipping carbcoon:

• service: UPS Ground, USPS Ground Advantage
• type: Fixed
• cost: $25.00
• transit: 13-20 Days
• class: Standard
• carrier: UPS, USPS

returns carbcoon:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

payments carbcoon:

• other
• credit card: Discover
• wallet: Paypal

general carbcoon:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors

offer carbcoon:

• sold: 0
• best offers: True
• options: Ship-to-home
• availability: In Stock
• started: March 7, 2026
• quantity: 1

seller carbcoon:

• # reviews: 364
• city: Thousand Oaks, California
• rating: 98.5%

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