HOLLEY 86770 Cfm Ultra Carburetor 4160 4BBL

( Brand: Holley ), ( Manufacturer Part Number: 86770 ), ( Type: Carburetor ), ( Features: Down Draft ), ( Choke Type: Electric ), ( Material: Aluminum ), ( Mounting Flange Type: Square Bore ), ( Performance Part: Yes ), ( Universal Fitment: No )

Review HOLLEY 4160 Cfm Ultra Carburetor List fits STREET AVENGER 770

Introducing the Holley 86770 4160 770 CFM 4bbl Ultra Street Avenger Carburetor, a high-performance solution for your hot rod or custom vehicle. This carburetor is designed with the serious enthusiast in mind, delivering exceptional power and torque while maintaining easy-to-use, street-friendly characteristics.

The Ultra Street Avenger 4160 series is known for its advanced features that cater to a wide range of applications. This 4-barrel carburetor boasts a massive 770 CFM (cubic feet per minute) airflow capacity, making it suitable for large displacement engines. The Holley Street Avenger utilizes a unique design that combines the benefits of a double-pumper with a single-pumper carburetor. It features a mechanical secondary system that engages progressively above approximately 55% throttle opening, providing a smooth power band and optimal fuel delivery.

The 86770 Holley Ultra Street Avenger carburetor is housed in a robust, durable cast-aluminum body. It comes standard with a billet aluminum intake manifold and bowtie-style fuel bowls, which not only add to the aesthetics but also contribute to better fuel distribution and atomization. The carburetor is also equipped with a built-in electric choke and Holley's patented "H-Port" secondary venturi design, which improves idle quality and reduces emissions.

The Ultra Street Avenger 4160 series carburetor is easy to tune and setup, with several factory-set base circles and jets to accommodate various fuel and engine combinations. It comes with a comprehensive instruction manual and a factory-set base circle chart to help you get started. Additionally, the carburetor is compatible with Holley's EFI Fuel Pressure Regulator (sold separately) for those seeking an even more refined fuel system.

In summary, the Holley 86770 4160 770 CFM 4bbl Ultra Street Avenger Carburetor is a powerful, versatile, and user-friendly solution for hot rods and custom vehicles. Its large airflow capacity, progressive secondary system, and advanced design features make it an excellent choice for enthusiasts seeking optimal power and torque while maintaining easy-to-use, street-friendly characteristics.

The Holley 86770 4160 770 CFM 4bbl Ultra Street Avenger Carburetor is a popular choice for those looking to upgrade their muscle car or hot rod's fuel delivery system. Here are some potential pros and cons of purchasing this carburetor:

1. High Flow Rate: The 770 CFM flow rate makes this carburetor suitable for high-performance applications. It can provide sufficient fuel to support increased horsepower and torque.

2. Easily Adjustable: This carburetor features a vacuum secondary system and a power valve, allowing easy tuning and adjustment for various driving conditions.

3. Durable Construction: The Ultra Street Avenger carburetor is built with heavy-duty materials, including a billet aluminum body and hard anodized aluminum components, ensuring long-lasting performance.

4. Wide Compatibility: This carburetor is compatible with a wide range of applications, including small-block Chevrolet, Ford, and Chrysler engines, making it a versatile choice for many muscle car and hot rod enthusiasts.

1. Complex Installation: Installing this carburetor can be a complex process, especially for those without prior experience. Proper setup and tuning can also be time-consuming.

2. Expensive: Compared to some other carburetors on the market, the Ultra Street Avenger is relatively expensive. The high-quality materials and advanced features justify the cost for many, but it may be a barrier for some budget-conscious enthusiasts.

3. Requires Fuel Pressure Regulator: The Ultra Street Avenger carburetor requires a fuel pressure regulator, which is not included in the box. This can add to the overall cost and complexity of the installation.

In conclusion, the Holley 86770 4160 770 CFM 4bbl Ultra Street Avenger Carburetor offers superior flow rate, easy adjustability, and durable construction, making it an excellent choice for those seeking high-performance fuel delivery. However, its complex installation process, higher price point, and required fuel pressure regulator may deter some potential buyers. Ultimately, the decision to purchase this carburetor depends on an individual's specific needs, budget, and experience level. If you are comfortable with the installation process and can afford the higher cost, this carburetor may be an excellent investment for your muscle car or hot rod project.

Details:

Shipping: Same-day handling on orders before 12:00 PM Noon CST Mon Fri.: 1 - USED HOLLEY ULTRA STREET AVENGER 770 cfm 4 BBL CARBURETOR, LIST NUMBER 86770-2 DATE CODE 1125.

part #: 86770 prices

• $146.99-$299.49

specifications carbcoon:

• for models: 770, Street, Avenger
• brand: Holley
• mpn: 86770
• type: Carburetor
• features: Down Draft
• choke type: Electric
• material: Aluminum
• mounting flange type: Square Bore
• performance part: Yes
• universal fitment: No

returns carbcoon:

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

payments carbcoon:

• other
• credit card: Diners-club
• wallet: Apple-pay

seller carbcoon:

• rating: 100.0%
• city: wood way, Texas
• # reviews: 1015

general carbcoon:

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

shipping carbcoon:

• transit: 4-7 Days
• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air Saver, UPS Next Day Air
• class: Standard, Expedited, One-day
• cost: $28.92
• carrier: UPS
• type: Calculated

offer carbcoon:

• sold: 0
• best offers: True
• availability: In Stock
• quantity: 1
• started: January 30, 2026
• options: Ship-to-home

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