HOLLEY LIST-7397 Spreadbore Carburetor 4175 650CFM

( Brand: Holley ), ( Manufacturer Part Number: LIST-7397 ), ( Non-domestic Product: No ), ( Type: Carburetor ), ( Mounting Flange Type: Spread Bore ), ( Vintage Part: Yes )

Review HOLLEY Spreadbore Carburetor Pontiac #list-7397 650cfm Parts

The Holley 4175 650 CFM List-7397 Spreadbore Carburetor is a high-performance fuel delivery system designed specifically for Pontiac applications. This carburetor boasts an impressive 650 cubic feet per minute (CFM) airflow rate, making it well-suited for larger engines or high-performance applications.

The List-7397 model is identified by its spreadbore intake manifold flange, which provides greater intake runner length for improved engine performance. The carburetor's design features a four-barrel configuration, ensuring optimal fuel distribution and air/fuel mixture for each cylinder.

1. Accu-Mize Secondary Venturi System: Holley's Accu-Mize system allows for adjustable secondary venturi sizes, enabling fine-tuning of the fuel mixture for optimal engine performance.

2. Holley's Ultra Lite Secondary Bowls: These lightweight, fiberglass secondary bowls help reduce weight and improve overall performance.

3. Adjustable Primary and Secondary Idle Circuits: The adjustable idle circuits provide fine-tuning capabilities to ensure smooth idling under various engine loads and conditions.

4. Holley's Special High-Performance Emulsion: The carburetor utilizes a high-performance emulsion that offers improved throttle response and fuel atomization for enhanced combustion efficiency.

5. Holley's Durability-Enhancing Features: The List-7397 carburetor boasts a durable, cast-aluminum base, as well as high-quality stainless steel components, ensuring longevity and reliability.

In summary, the Holley 4175 650 CFM List-7397 Spreadbore Carburetor is a high-performance fuel delivery system designed for Pontiac applications. Its 650 CFM airflow rate, spreadbore intake manifold flange, and numerous desirable features make it an ideal choice for those seeking improved engine performance and fine-tuning capabilities.

The Holley 4175 650 CFM Spreadbore Carburetor is a popular choice among hot rodders and performance enthusiasts due to its high air flow rate and unique design. Here are some pros and cons that might help you make an informed decision about purchasing this carburetor for your Pontiac.

1. High Air Flow Rate: With a flow rate of 650 CFM, this carburetor is capable of delivering a lot of air and fuel to high-performance engines, making it an excellent choice for power-hungry applications.

2. Spreadbore Design: The spreadbore design of the Holley 4175 carburetor allows for greater velocity and better atomization of the fuel, resulting in a more even fuel mixture and improved engine performance.

3. Easy to Tune: Holley carburetors are known for their ease of tuning, and the 4175 model is no exception. The adjustable primary and secondary jets, idle mixture screws, and power valve allow for precise tuning to optimize engine performance.

4. Durable Construction: The Holley 4175 carburetor is built with high-quality materials, including a billet aluminum base and stainless steel components, making it a durable and long-lasting option.

1. Complexity: Compared to some other carburetors, the Holley 4175 can be more complex to install and tune, requiring a certain level of expertise and time investment.

2. Cost: The Holley 4175 carburetor is not an inexpensive option, and the cost of purchasing and installing it may be a deterrent for some.

3. Size: Due to its high air flow rate and spreadbore design, the Holley 4175 carburetor is larger than some other options, which may require modifications to the engine bay or intake manifold.

The Holley 4175 650 CFM Spreadbore Carburetor is a high-performance carburetor that offers excellent air flow, precise tuning capabilities, and durable construction. However, it comes with a higher cost and greater complexity compared to some other options. If you are looking for a high-performance carburetor for your Pontiac and have the expertise and resources to install and tune it, then the Holley 4175 is an excellent choice. However, if you are looking for a more affordable or simpler option, there may be other carburetors that better suit your needs.

If you are serious about performance and have the expertise and resources to install and tune a high-performance carburetor like the Holley 4175, then it is definitely worth considering. However, if you are looking for a more affordable or simpler option, you may want to consider other carburetors like the Edelbrock Performer or the Holley Double Pumper. Ultimately, the best choice depends on your specific needs, budget, and level of expertise.

Details:

This model is spreadbore design for Pontiac 350/400/455 engines, with one accelerator pump, vacuum secondaries, and an automatic choke. This is a parts carburetor; nothing seized, the secondary link missing; bowl has been patched with sealer it was probably leaking ; please look at pictures carefully before buying. You are buying on a Holley model 4175 four-barrel carburetor, stamped P/N # LIST-7397, date code 0852, rated at 650 cfm .

part #: list7397 prices

• $57.99-$79.99

specifications carbcoon:

• for makes: Pontiac
• brand: Holley
• mpn: List-7397
• non-domestic product: No
• type: Carburetor
• mounting flange type: Spread Bore
• vintage part: Yes

payments carbcoon:

• credit card: Mastercard
• other
• wallet: Apple-pay

seller carbcoon:

• rating: 100.0%
• city: Rumford, Rhode Island
• # reviews: 13391

general carbcoon:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
• condition: For parts or not working

shipping carbcoon:

• carrier: FedEx, USPS
• cost: $52.86
• transit: 4-8 Days
• service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, USPS Ground Advantage
• class: Standard, Expedited
• type: Calculated

returns carbcoon:

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

offer carbcoon:

• started: January 2, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0

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