HOLLEY Double Pumper

( Brand: Holley ), ( Manufacturer Part Number: LIST3667 ), ( Type: Carburetor ), ( Choke Type: Mechanical ), ( Oe/oem Part Number: 2843151 )

Review HOLLEY Double Pumper Used List 3667 fits 750

The Holley 3667 750 Double Pumper Carburetor is a high-performance fuel delivery system designed to provide precise and consistent fuel delivery for your classic or muscle car. This carburetor is part of Holley's famous Ultra series, which is known for its advanced features and easy tuning capabilities.

The 3667 model is a 750 CFM double pumper carburetor, making it ideal for large displacement engines that require generous fuel flow. It features Holley's proven design with a traditional float bowl and two powerful vacuum secondary circuits that help ensure optimal engine performance across the entire RPM range.

The primary circuit is controlled by a 1.25-inch primary bore, which provides ample fuel delivery for idle and cruising conditions. The secondary circuits are managed by a 1.50-inch secondary bore, which delivers additional fuel during wide-open throttle situations for maximum power output.

One of the most notable features of this carburetor is its advanced metering design. The 3667 Double Pumper utilizes Holley's Synchrojet II metering blocks, which provide smooth fuel metering and improved idle quality. These metering blocks also offer easy tuning adjustments, allowing you to fine-tune the carburetor to your specific engine and fuel requirements.

Additionally, this carburetor comes with a number of convenient features, including a removable bowl gasket, adjustable idle mixture screws, and a built-in adjustable idle mixture screw on the venturi. These features make it simple to set up and dial in the perfect idle for your application.

The Holley 3667 750 Double Pumper Carburetor is constructed from high-quality materials and designed to withstand the rigors of high-performance driving. It comes with a durable chrome plated aluminum body and brass fuel bowls, ensuring that it looks great and performs reliably for years to come.

Overall, the Holley 3667 750 Double Pumper Carburetor is an excellent choice for anyone looking for a high-performance, easy-to-tune fuel delivery system for their classic or muscle car. Its advanced features, precise fuel metering, and durable construction make it a top pick among enthusiasts and professionals alike.

The Holley 3667 750 Double Pumper carburetor is a popular choice among car enthusiasts for its ability to deliver reliable and consistent fuel delivery to high-performance engines. Here are some pros and cons of buying this carburetor:

1. High-performance: The Holley 3667 750 Double Pumper is designed to deliver large amounts of fuel to high-performance engines. It is ideal for use in hot rods, muscle cars, and other types of performance vehicles.

2. Fuel efficiency: Despite its high-performance capabilities, the Holley 3667 750 Double Pumper is known for its fuel efficiency. It helps in reducing fuel consumption by delivering only the necessary amount of fuel to the engine.

3. Customizable: Holley offers a wide range of customization options for this carburetor, including different base plates, intake manifolds, and fuel bowls, making it a versatile choice for various engine applications.

4. Easy installation: The Holley 3667 750 Double Pumper comes with clear instructions and easy-to-follow installation procedures, making it a relatively simple process for most DIY enthusiasts.

5. Durable: The carburetor is built to withstand high-performance applications, with heavy-duty components and a robust design.

1. Complexity: Compared to stock carburetors, the Holley 3667 750 Double Pumper is more complex, with additional components like the secondary fuel pump and the vacuum secondary system. This could make it more challenging to tune and maintain.

2. Cost: The Holley 3667 750 Double Pumper is a premium carburetor, and it comes with a premium price tag. Its cost might be a barrier for some enthusiasts.

3. Fuel pressure: Proper fuel pressure is crucial for optimal engine performance. The Holley 3667 750 Double Pumper requires careful tuning to ensure the right fuel pressure, which could be time-consuming and may require professional assistance.

4. Vacuum secondary system: The vacuum secondary system in the Holley 3667 750 Double Pumper can be sensitive to vacuum fluctuations, which could affect fuel delivery and engine performance. Proper tuning and calibration are necessary to ensure consistent operation.

The Holley 3667 750 Double Pumper is a high-performance carburetor that offers excellent fuel delivery and efficiency for performance vehicles. Its durability and customizability make it an attractive choice for enthusiasts. However, its complexity, cost, and the need for careful tuning might be drawbacks for some. Ultimately, the decision to buy this carburetor depends on individual preferences, engine requirements, and budget constraints.

If you are looking for a high-performance carburetor for your project car and are willing to invest the time and resources in its tuning and maintenance, the Holley 3667 750 Double Pumper is a solid choice. Its reputation for delivering consistent fuel delivery and its versatility across various engine applications make it a worthwhile investment for enthusiasts who demand the best from their performance vehicles.

Details:

The product is a used Holley 750 double pumper carburetor, featuring 4 barrels and mechanical choke type. It has the OE/OEM part number 2843151 and manufacturer List3667.

part #: list3667 prices

• $79.95-$95.00

specifications carbcoon:

• for models: 750
• brand: Holley
• mpn: List3667
• type: Carburetor
• choke type: Mechanical
• oe/oem part number: 2843151

general carbcoon:

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

seller carbcoon:

• rating: 0.0%
• # reviews: 0
• city: Wolf Point, Montana

offer carbcoon:

• quantity: 1
• best offers: True
• sold: 0
• availability: In Stock
• started: April 29, 2025
• options: Ship-to-home

shipping carbcoon:

• type: Fixed
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• cost: $8.74
• transit: 3-9 Days

payments carbcoon:

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

returns carbcoon:

• policy: No Returns

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