HOLLEY 6390-1 Holly Cfm Barrel Carburetor 4150 428114-C91

( Brand: Holley ), ( Manufacturer Part Number: 6390-1 ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Oe/oem Part Number: 428113-c91 ), ( Country/region Of Manufacture: United States )

Review HOLLEY Vintage Holly 4150 List Cfm Barrel Carburetor fits 600

The Holley 6390-1 4150 600 CFM Barrel Carburetor, part number 428114-C91, is a high-performance fuel delivery system engineered for enthusiasts seeking optimal engine response and fuel efficiency. This double-pumper carburetor is suitable for applications requiring increased horsepower and torque, making it an excellent choice for hot rods, muscle cars, and high-performance vehicles.

The 6390-1 Holley carburetor features a 4150-series barrel with a 600 CFM (cubic feet per minute) airflow rate, which ensures a consistent fuel-air mixture for smooth and powerful engine operation. This carburetor comes equipped with a secondary fuel pump, known as a "double-pumper," that provides an additional fuel source to the secondary circuits, enhancing the vacuum secondary and power valve functioning.

This carburetor boasts a number of advanced features to improve performance and ease of tuning. The Holley S-jet main jets provide precise fuel delivery, while the secondary fuel circuits include a vacuum secondary and power valve for improved idle and vacuum sensitivity. The finned aluminum base keeps the carburetor cool, reducing the risk of vapor lock and ensuring stable engine temperature.

The Holley 6390-1 carburetor offers a wide range of adjustability to cater to various engine configurations and driving conditions. Adjustable primary and secondary fuel mixtures, idle mixture screws, and air bleeds allow for fine-tuning to optimize engine performance. Moreover, the carburetor's accessible adjustments make it easy to configure the settings for different driving scenarios.

The 428114-C91 Holley carburetor comes with a variety of hardware and accessories to simplify installation and customization. The kit includes a float bowl gasket, mounting hardware, fuel inlets, and a linkage bracket, among other items. Additionally, this carburetor is compatible with various Holley accessories, such as vacuum secondary kits, power valves, and electronic fuel pressure regulators, ensuring versatility and flexibility for your high-performance build.

In summary, the Holley 6390-1 4150 600 CFM Barrel Carburetor, part number 428114-C91, is a high-performance fuel delivery system designed for enthusiasts seeking increased horsepower, torque, and engine response. With its advanced features, wide range of adjustability, and ease of tuning, this double-pumper carburetor is an excellent choice for hot rods, muscle cars, and high-performance vehicles.

Holley 6390-1 vs. Holley 4150 600 CFM Barrel Carburetor: A Comparison with Pros, Cons, and Recommendation

The Holley 6390-1 and Holley 4150 600 CFM barrel carburetors are two popular options for automotive enthusiasts seeking high-performance carburetors. In this comparison, we will discuss the key differences between these two models, their respective pros and cons, and provide a recommendation based on various factors.

The Holley 6390-1 is a double pumper carburetor, meaning it has two vacuum secondaries that provide additional fuel for high RPM operation. This design offers improved power and torque, making it an excellent choice for performance applications. Some notable features include:

1. Enhanced power and torque due to double pumper design.

2. Holley's proven design and durability.

3. Wide range of available base circles and secondary configurations.

1. More complex installation compared to a single-pumper carburetor.

2. Higher cost due to its advanced design and features.

The Holley 4150 600 CFM is a traditional single-pumper carburetor, which means it has one vacuum secondary that provides fuel for high RPM operation. This design is more common and typically easier to install than a double pumper carburetor. Some key features include:

1. Simpler installation process compared to a double pumper carburetor.

2. Lower cost due to its simpler design.

3. Wide availability of aftermarket parts and tuning options.

1. Limited power and torque compared to a double pumper carburetor.

2. May not provide optimal performance in high-performance applications.

The choice between the Holley 6390-1 and Holley 4150 600 CFM carburetors depends on your specific application and performance goals. If you are looking for maximum power and torque in a high-performance application, the Holley 6390-1 double pumper carburetor is the recommended choice. However, if you are working on a budget or seeking a simpler installation process, the Holley 4150 600 CFM single-pumper carburetor may be a better option.

In summary, both the Holley 6390-1 and Holley 4150 600 CFM barrel carburetors have their unique advantages and disadvantages. The double pumper design of the Holley 6390-1 offers enhanced power and torque, while the single-pumper design of the Holley 4150 600 CFM simplifies installation and reduces cost. Ultimately, the best choice depends on your specific application, performance goals, and budget.

Details:

While it does not come with a manufacturer warranty, is reliable and durable product for air fuel delivery systems. It features a square bore mounting flange type and an electric choke. Inch 4 Barrel 600 cfm Holley carburetor. Vintage Holly 4150 List # 6390-1 600 cfm 4 Barrel Carburetor 428114-C91 is a high-quality carburetor produced by Holley in the USA.

part #: 63901 prices

• $145.89-$399.95

specifications carbcoon:

• for models: 600
• brand: Holley
• mpn: 6390-1
• choke type: Mechanical
• type: Carburetor
• mounting flange type: Square Bore
• oe/oem part number: 428113-c91
• country/region of manufacture: United States

returns carbcoon:

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

shipping carbcoon:

• carrier: UPS
• transit: 3-8 Days
• type: Fixed
• cost: $29.99
• class: Standard
• service: UPS Ground

offer carbcoon:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• best offers: True
• started: July 21, 2025
• quantity: 1

general carbcoon:

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

seller carbcoon:

• # reviews: 148
• rating: 100.0%
• city: Hopkins, Minnesota

payments carbcoon:

• other
• wallet: Google-pay
• credit card: Visa

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