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  3. HOLLEY 122-108

HOLLEY 122-108 Carburetor Standard Jet 090127479612

122-108 Holley Carburetor Standard Main Jet

( Brand: Holley ), ( Part Type: Jet Carburetor ), ( Material: Brass ), ( Manufacturer Warranty: Manufacturers Limited 90 Day Warranty ), ( UPC: 090127479612 ), ( Manufacturer Part Number: 122-108 ), ( Item Length: 0.35 In )

Review HOLLEY Carburetor Standard Main Jet

The Holley 122-108 Carburetor, also known as the "4150" series carburetor, is a renowned fuel delivery system widely used in performance applications, particularly for American V8 engines. This carburetor boasts a classic design, featuring a square-bored, aluminum body, and is suitable for use with standard jets.

The 122-108 model comes with a 750 CFM (cubic feet per minute) dual-plane intake manifold and is compatible with stock and high-performance applications. This carburetor is known for its excellent fuel atomization, ensuring efficient combustion and improved engine performance.

The Holley 122-108 Carburetor features a reliable vacuum secondary system, which includes a power valve and automatic choke. The power valve helps to maintain a consistent fuel-air mixture under varying engine loads, while the automatic choke ensures easy starting in cold conditions.

The carburetor is equipped with adjustable idle mixtures, which can be fine-tuned using the provided screws on the bottom of the carburetor body. This feature allows for easy adjustment to achieve optimal engine performance, whether during idle or under load.

The Holley 122-108 Carburetor is also notable for its ease of tuning, thanks to its accessible adjustments, clear markings, and user-friendly design. The primary jets are located on the top of the carburetor, making them simple to access for fine-tuning. The secondary jets, located underneath the primary jets, can also be adjusted for optimal performance.

This carburetor is designed to provide excellent fuel economy, making it a popular choice for both street and racing applications. The Holley 122-108 Carburetor is a versatile and powerful fuel delivery system that offers reliable performance and ease of tuning. Its classic design, combined with advanced features, makes it a top choice for automotive enthusiasts looking to enhance their engine's performance.

Holley 122-108 carburetor (standard jet) is a popular choice among automotive enthusiasts for its reliability and performance in various applications. Here are some pros and cons that might help you decide if this carburetor is suitable for your project.

Pros:

1. Wide applicability: The Holley 122-108 carburetor is suitable for a wide range of engine sizes and applications, making it a versatile option for many vehicle owners.

2. Easy tuning: Holley carburetors are known for their ease of tuning, and the 122-108 model is no exception. It comes with a built-in vacuum secondary system that can be easily adjusted for optimal fuel-air mixture.

3. High-performance: This carburetor offers excellent airflow and fuel delivery, making it an ideal choice for high-performance applications.

4. Durable construction: The Holley 122-108 carburetor is built to last, with a heavy-duty cast aluminum base and high-quality components.

5. Availability of parts and accessories: Holley offers a wide range of parts and accessories for its carburetors, making it easy to find replacements or upgrades.

Cons:

1. Complexity: Compared to some other carburetor models, the Holley 122-108 can be more complex to install and tune, requiring some expertise and experience.

2. Cost: This carburetor is on the higher end of the price spectrum, which might be a deterrent for some budget-conscious enthusiasts.

3. Fuel economy: While the Holley 122-108 carburetor offers excellent performance, it might not be the most fuel-efficient option, which could be a concern for some vehicle owners.

Conclusion:

The Holley 122-108 carburetor is an excellent choice for automotive enthusiasts looking for high-performance and versatility in their project. Its ease of tuning, durability, and wide applicability make it a popular option among car builders and restorers. However, its complexity and cost might be a deterrent for some, and it may not be the most fuel-efficient option.

Recommendation:

If you are looking for a high-performance carburetor with excellent tuning capabilities and wide applicability, the Holley 122-108 carburetor is an excellent choice. However, it may not be the best option if you are on a tight budget or are prioritizing fuel economy over performance. It is recommended that you consult with a professional mechanic or carburetor expert to ensure proper installation and tuning of this carburetor.

part # 122108 prices

  • $15.76-$30.42

specifications carbcaddie:

  • brand: Holley
  • part type: Jet Carburetor
  • material: Brass
  • manufacturer warranty: Manufacturers Limited 90 Day Warranty
  • upc: 090127479612
  • manufacturer part number: 122-108
  • item length: 0.35 In

general carbcaddie:

  • condition: New
  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts

shipping carbcaddie:

  • service: UPS Ground
  • cost: $11.95
  • class: Standard
  • transit: 2-6 Days
  • type: Fixed
  • carrier: UPS

payments carbcaddie:

  • other
  • wallet: Paypal
  • credit card: Visa

offer carbcaddie:

  • started: July 24, 2025
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock

returns carbcaddie:

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

seller carbcaddie:

  • # reviews: 75417
  • rating: 99.2%
part type: jet carburetor, manufacturer warranty: manufacturers limited 90 day warranty, item length: 0.35 in,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, material: brass, sku: 5721215771757563,

Holley 122-108 Is Similar To:

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5 offers $15.76–$30.42 USD
  • Offer #1: $15.76 price + free delivery = $15.76* total. Sold as a Pair (2). Holley - Holley Standard Main Jets Size.FREE SHIPPING
  • Offer #2: $30.42 price + free delivery = $30.42* total. Carburetor Type: Holley. Holley has been the undisputed leader in fuel systems for over 100 years.FREE SHIPPING
  • Offer #3: $27.23 price + free delivery = $27.23* total. All Holley jets are sized by actual flow and may vary from sizes above. All Holley Main jets are flow tested and then stamped with the correct number.FREE SHIPPING
  • Offer #4: $15.76 price + $15.99 delivery = $31.75* total. Standard Main Jet 108, Hole size .1470" Holley Standard Main Jet 108 Hole size .1470".+$15.99 shipping
  • Offer #5: $15.76 price + $15.99 delivery = $31.75* total. Jet - Large/Jumbo.+$15.99 shipping