HOLLEY 80497-1 Carburetor Vacuum Secondaries 950CFM 4-BARREL

( Brand: Holley ), ( Manufacturer Part Number: 80497-1 ), ( Type: Carburetor ), ( Material: Aluminum ), ( Country/region Of Manufacture: United States ), ( Performance Part: Yes )

Review HOLLEY 950cfm 4-barrel Carburetor Vacuum Secondaries

The Holley 80497-1 950 CFM 4-barrel carburetor is a high-performance automotive component designed for applications requiring large fuel delivery and vacuum secondary systems. This carburetor is a part of Holley's Ultra series, known for its advanced engineering and innovative features.

The primary fuel delivery system consists of four 2-gallon-per-minute (GPM) venturi bowls. Each venturi bowl is equipped with a 1-inch metering rod that ensures precise fuel delivery based on the engine vacuum. The bowls are further secured with a gasket and clamp assembly for a leak-free installation. The primary fuel jets are adjustable to cater to various engine requirements.

One of the standout features of this carburetor is the vacuum secondary system. The secondary system consists of four 1.5-inch throttle bores, each equipped with a 0.030-inch throttle plate. The secondary circuits are designed to provide additional fuel during high engine RPMs or under heavy load conditions. The secondary fuel metering rods are adjustable, allowing users to fine-tune the fuel mixture for optimal engine performance.

The Holley 80497-1 carburetor comes with a number of additional features to enhance its durability and ease of use. The main body is constructed from aluminum, keeping the weight low and offering excellent heat dissipation. The base plate is made of cast iron, providing a stable and sturdy foundation for the carburetor. The floats are made of glass-filled nylon, a material known for its resistance to wear and tear.

This carburetor also features Holley's unique Duramax diaphragm, which provides a consistent vacuum signal to the secondary circuits. The diaphragm is designed to last longer than traditional vacuum systems, ensuring consistent performance over extended periods.

The Holley 80497-1 950 CFM 4-barrel carburetor is an excellent choice for high-performance applications that require large fuel delivery and vacuum secondary systems. Its advanced engineering, innovative features, and durable materials make it a reliable and effective component for enhancing engine performance.

Holley 80497-1 950 CFM 4-barrel carburetor with vacuum secondaries is a popular choice among automotive enthusiasts for enhancing the performance of their engines. Here are some pros and cons of buying this carburetor:

1. High CFM (Cubic Feet per Minute) rating: The 950 CFM rating makes this carburetor suitable for high-performance applications, providing ample fuel to the engine for improved power and throttle response.

2. Vacuum secondaries: Vacuum secondary circuits add additional fuel to the engine under wide-open throttle conditions, allowing for more efficient combustion and increased power output.

3. Versatile application: This carburetor can be used in various applications, including muscle cars, hot rods, and race cars.

4. Wide range of adjustability: Holley carburetors are known for their extensive adjustability, allowing users to fine-tune the fuel mixture for optimal performance.

5. Durable construction: The Holley 80497-1 features a robust design, ensuring long-lasting performance even under harsh conditions.

1. Complex installation: Installing a Holley carburetor with vacuum secondaries can be a challenging task, requiring extensive knowledge of fuel systems and vacuum circuits.

2. Expensive: Compared to other carburetors on the market, the Holley 80497-1 is relatively expensive, making it a less viable option for those on a tight budget.

3. Requires specialized tools: To properly install and tune the carburetor, specialized tools may be necessary, which can add to the overall cost.

4. Ongoing maintenance: Carburetors generally require more maintenance than fuel injection systems, and the Holley 80497-1 is no exception. Regular maintenance, such as jetting and syncing, is essential to ensure optimal performance.

The Holley 80497-1 950 CFM 4-barrel carburetor with vacuum secondaries offers significant performance gains for high-performance applications. Its versatility, adjustability, and durable construction make it a popular choice among automotive enthusiasts. However, its complex installation process, high cost, and ongoing maintenance requirements may deter some potential buyers.

If you are looking for a high-performance carburetor with vacuum secondaries and are willing to invest the time and resources into its installation and maintenance, the Holley 80497-1 is an excellent choice. However, if you are on a tight budget or prefer a more straightforward fuel delivery system, you may want to consider alternative options, such as a single-plane intake with a 600-750 CFM carburetor or a fuel injection system.

Details:

In like new condition.

part #: 804971 prices

• $169.99-$528.95

specifications carbcoon:

• brand: Holley
• mpn: 80497-1
• type: Carburetor
• material: Aluminum
• country/region of manufacture: United States
• performance part: Yes

returns carbcoon:

• policy: No Returns

shipping carbcoon:

• class: Economy
• cost: $29.99
• service: Economy
• type: Fixed
• transit: 5-8 Days

payments carbcoon:

• money order
• credit card: Mastercard
• other
• wallet: Paypal

offer carbcoon:

• availability: In Stock
• quantity: 1
• sold: 0
• options: Ship-to-home
• started: April 17, 2025

seller carbcoon:

• rating: 99.3%
• city: Carmichael, California
• # reviews: 1346

general carbcoon:

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

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