HOLLEY 80507-3 Cfm Carburetor Nascar 4150

( Brand: Holley ), ( Manufacturer Part Number: 80507-3 ), ( Type: Carburetor ), ( Manufacturer Warranty: No Warranty )

Review HOLLEY Cfm Carburetor 4150 Series Nascar Truck Pn fits 390

Introducing the Holley 80507-3 390 CFM Carburetor, a high-performance 4150 Nascar-style carburetor that delivers precise fuel metering for racing applications. This carburetor is a part of Holley's renowned Ultra Series line, known for its advanced design and engineering.

The Holley 80507-3 features a 390 CFM (cubic feet per minute) secondary venturi, which provides an ample fuel flow rate for large displacement engines. Its 4150 Nascar design boasts a large-bore, open-element air filter, allowing for a massive airflow capacity and improved engine breathability.

The carburetor comes with a unique Holley Ultra diaphragm-style fuel pump, offering superior fuel pressure and vacuum sensitivity. The 6-71 style blower pump flange is an added convenience for those using a supercharger.

The Holley 80507-3 includes a vacuum secondary system, which ensures consistent fuel delivery under varying engine vacuum conditions. The secondary circuit delivers fuel to the venturis via a unique "barrel" design, eliminating the need for internal float bowls and offering improved reliability and ease of tuneability.

The carburetor's primary circuit features a Holley Ultra 8-port lower and a 750 CFM accelerator pump. This design ensures smooth transitions between idle and full throttle, providing optimal engine response.

The Holley 80507-3 390 CFM Carburetor is constructed from high-quality aluminum and features a durable powder-coated finish. It includes a brass fuel bowl gasket and a chrome-plated fuel bowl cover for added durability and appearance.

Installation of this carburetor is simplified by its advanced design and the inclusion of a pre-assembled linkage kit. The kit comes with a variety of mounting brackets and various linkage options, ensuring a seamless installation process for most applications.

In summary, the Holley 80507-3 390 CFM Carburetor is a powerful, reliable, and easy-to-tune racing carburetor designed for large displacement engines. Its Nascar-style design, advanced features, and high-quality construction make it an excellent choice for those seeking optimal engine performance in their racing applications.

The Holley 80507-3 390 CFM 4150 NASCAR carburetor is a popular choice for racers and high-performance enthusiasts due to its advanced features and proven performance. Here are some pros and cons that can help you make an informed decision about purchasing this carburetor:

1. High Flow Rate: This carburetor offers a high air flow rate of 390 CFM, which is ideal for high-performance applications that require abundant fuel and air mixture for efficient combustion.

2. Accurate Fuel Mixture: The Holley 80507-3 carburetor features a vacuum secondary system that ensures accurate fuel mixture delivery for optimal engine performance.

3. Adjustability: This carburetor offers multiple adjustment options, including main jet, power valve, and idle mixture, allowing users to fine-tune their engine settings for different driving conditions.

4. Durable Construction: The carburetor body is made of aluminum, which is lightweight yet strong, and the internals are made of high-quality materials that can withstand the rigors of high-performance driving.

5. Easy to Install: The Holley 80507-3 carburetor comes with detailed instructions, making it relatively easy to install for experienced DIYers.

1. Complexity: The Holley 4150 NASCAR carburetor is a complex piece of machinery, and setting it up correctly requires a good understanding of carburetion fundamentals and engine tuning.

2. Cost: Compared to stock carburetors or simple aftermarket options, the Holley 80507-3 carburetor is relatively expensive.

3. Fuel Efficiency: Due to its high flow rate and aggressive fuel delivery, this carburetor may not be the best choice for vehicles that prioritize fuel efficiency over performance.

The Holley 80507-3 390 CFM 4150 NASCAR carburetor is a high-performance carburetor that delivers accurate fuel mixture, adjustability, and durability. However, it comes with a steep learning curve and a higher price tag than some other options. If you're looking for a carburetor to maximize engine performance in a high-performance application, the Holley 80507-3 is an excellent choice. However, if you prioritize fuel efficiency or ease of use, you may want to consider other options.

If you're serious about high-performance driving and willing to invest the time and resources to learn how to set up and tune this carburetor, the Holley 80507-3 390 CFM 4150 NASCAR carburetor is an excellent choice. However, if you're new to carburetion or looking for a more straightforward solution, you may want to consider other options, such as a stock carburetor or a simpler aftermarket carburetor. Ultimately, the decision depends on your priorities, budget, and experience level.

Details:

Otherwise good condition. Used on a NASCAR race truck. It is a true racing carb. I don't know which team it came from, but will probably need a rebuild kit.

part #: 805073 prices

• $66.99-$97.99

specifications carbcoon:

• for models: 390
• brand: Holley
• mpn: 80507-3
• type: Carburetor
• manufacturer warranty: No Warranty

offer carbcoon:

• quantity: 1
• started: November 29, 2025
• sold: 0
• options: Ship-to-home
• availability: In Stock

payments carbcoon:

• wallet: Paypal
• credit card: Discover
• other

shipping carbcoon:

• class: Standard, Expedited
• carrier: UPS, USPS
• service: UPS Ground, USPS Priority Mail
• cost: $18.20
• type: Calculated
• transit: 4-9 Days

seller carbcoon:

• rating: 100.0%
• city: Farmington, Missouri
• # reviews: 4123

general carbcoon:

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

returns carbcoon:

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

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