1. USED Car/Truck Carburetors Items
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  3. DEMON 21229

DEMON 21229 Carb Mechanical Sec Fittings Down Leg 850CFM

21229 Demon 850cfm Hp Series Carb Aluminum Mechanical Sec Fittings Down Leg

( Brand: Demon ), ( Manufacturer Part Number: 21229 ), ( Choke Type: No Choke ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Material: Aluminum ), ( Country Of Origin: United States ), ( Performance Part: Yes )

Review DEMON 850cfm Hp Series Carb Aluminum Mechanical Sec Fittings Down Leg

Introducing the Demon 21229 850 CFM HP Carburetor, a high-performance mechanical fuel delivery system designed for enthusiasts seeking maximum power and efficiency from their engine. This carburetor is a direct replacement for stock units, offering an upgrade that delivers impressive results.

The Demon 21229 is a 2-gross-horsepower carburetor, capable of delivering an impressive airflow rate of 850 CFM. This increased flow rate ensures optimal fuel delivery to the engine, resulting in improved throttle response, smoother idle, and enhanced power output.

The mechanical secondary design of this carburetor provides precise fuel metering for various engine loads and RPMs. The secondary circuit is controlled by a linkage system that activates the secondary needle and jet when vacuum pressure drops under certain conditions. This design ensures a more consistent fuel delivery, leading to a more responsive engine and better overall performance.

The Demon 21229 comes with down-leg fuel bowls, which are designed to improve fuel level stability and reduce the risk of fuel starvation during high-performance driving. The carburetor also features mechanical fuel pressure regulators, which maintain a consistent fuel pressure throughout the engine's operating range.

This carburetor is compatible with a wide range of fuel systems, including those that use mechanical fuel pumps and external fuel pressure regulators. It comes with SecureFit flange gaskets, ensuring a leak-free installation and easy removal for maintenance.

The Demon 21229 is a high-quality, high-performance carburetor that delivers impressive power gains and improved drivability. It is engineered and manufactured to the highest standards, ensuring long-lasting reliability and durability. Installation is relatively straightforward, making it an excellent upgrade for both street and racing applications.

In summary, the Demon 21229 850 CFM HP Carburetor is a top-tier performance upgrade for any engine seeking improved power, efficiency, and responsiveness. Its mechanical secondary design, down-leg fuel bowls, and SecureFit flange gaskets make it a versatile and reliable addition to any fuel system.

Pros and Cons of buying a DEMON 21229 850cfm HP Carburetor with Mechanical Secondary Fittings and Down Leg

The DEMON 21229 850cfm HP Carburetor is a popular choice among automotive enthusiasts for its high performance and mechanical secondary fittings with a down leg design. In this analysis, we will discuss the pros and cons of investing in this carburetor.

Pros:

1. High Air Flow: The DEMON 21229 carburetor boasts an impressive airflow rate of 850cfm, which can significantly enhance the performance of high-performance engines.

2. Mechanical Secondary Fittings: The mechanical secondary fittings allow for fine-tuning of the fuel mixture, resulting in better combustion and improved engine response.

3. Down Leg Design: The down leg design provides better fuel distribution and atomization, leading to more consistent fuel delivery and improved engine performance.

4. Durability: DEMON carburetors are known for their robust construction and hard-wearing materials, ensuring long-lasting performance.

5. Easy Installation: The DEMON 21229 carburetor features a straightforward installation process, making it a popular choice for DIY enthusiasts and professionals alike.

Cons:

1. Complexity: The mechanical secondary fittings and down leg design may be more complex than other carburetor designs, requiring more time and expertise to tune and maintain.

2. Cost: The DEMON 21229 carburetor is more expensive than some other options on the market due to its high-performance features and advanced design.

3. Fuel Efficiency: The high-performance design of the DEMON 21229 carburetor may result in reduced fuel efficiency, which could lead to increased fuel costs over time.

4. Limited Compatibility: This carburetor may not be compatible with all engine types and applications, so it's crucial to ensure it's the right fit for your vehicle before making a purchase.

Conclusion:

The DEMON 21229 850cfm HP Carburetor is an excellent choice for automotive enthusiasts seeking high performance and advanced tuning capabilities. Its mechanical secondary fittings and down leg design provide superior fuel distribution and atomization, leading to improved engine response and overall performance. However, its complexity, cost, and potential impact on fuel efficiency may be drawbacks for some users. Ultimately, whether or not the DEMON 21229 carburetor is the right choice for you depends on your specific needs, budget, and expertise.

Recommendation:

If you're looking for a high-performance carburetor with advanced tuning capabilities and are willing to invest the time and resources required for its maintenance, the DEMON 21229 850cfm HP Carburetor is an excellent option to consider. However, if you're seeking a more affordable, easier-to-use carburetor, you may want to explore other options on the market. Always make sure to consult with a professional mechanic or carburetor expert to ensure the DEMON 21229 carburetor is the best fit for your vehicle and engine application.

Details:

Tenable Air Bleeds, All Aluminum, Tumbled Finish. Carburetor, Demon 850 cfm 4150 Carb. Mechanical Secondaries, Down Leg Boosters. Like New Condition, Guaranteed.

specifications carbcoon:

  • brand: Demon
  • mpn: 21229
  • choke type: No Choke
  • type: Carburetor
  • mounting flange type: Square Bore
  • material: Aluminum
  • country of origin: United States
  • performance part: Yes

general carbcoon:

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

returns carbcoon:

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

payments carbcoon:

  • wallet: Google-pay
  • credit card: Visa
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offer carbcoon:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • started: April 20, 2026

shipping carbcoon:

  • class: Expedited
  • transit: 3-9 Days
  • type: Fixed
  • cost: $20.00
  • carrier: USPS
  • service: USPS Priority Mail

seller carbcoon:

  • city: East Jordan, Michigan
  • rating: 99.8%
  • # reviews: 16130
choke type: no choke, type: carburetor, mounting flange type: square bore, country of origin: united states, performance part: yes,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: aluminum, sku: 10934567274792881,

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