HOLLEY R6354 Holler Capri Unit 2BBL R6994 1972 A/t 2.6L

( Brand: Holley ), ( Type: Carburetor ), ( Manufacturer Warranty: 1 Month ), ( Manufacturer Part Number: R6354 ), ( Material: Steel ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review HOLLEY Holler 1972 Mercury Capri A/t 2.6l New Unit

The Holley R6354 carburetor is a 2-barrel model that is specifically designed for use with the 1972 Mercury Capri automobiles equipped with the 2.6L inline-4 engine and an automatic transmission. This carburetor is part of Holley's 2bbl line, which is known for its reliability, ease of tuning, and excellent performance.

This Holley R6354 carburetor features a unique design that includes a secondary metering block that allows for optimal fuel delivery to the engine under various operating conditions. The metering block is integrated with the primary venturis, ensuring smooth and consistent fuel flow to the engine. The secondary metering block is adjustable, allowing for fine-tuning of the fuel mixture for optimal engine performance.

The carburetor body is constructed of high-quality aluminum, which is both lightweight and durable. It also features a polished finish that not only looks great but also helps to reduce air turbulence for improved engine performance. The base plate is also made of aluminum and is designed to be bolted directly to the engine or intake manifold.

The Holley R6354 carburetor comes with a set of 1.5-inch primary and secondary throttle bore venturis. The venturis are machined from high-quality billet aluminum for precision and durability. The throttle shafts are also made of high-strength steel and are designed to provide smooth and precise throttle response.

The carburetor includes a built-in air bleed system, which makes it easy to remove all air from the fuel system during startup. The air bleed system consists of a small hole located on the top of the carburetor body, which can be covered with a thumbscrew during installation. Once the engine is running, the screw can be removed to allow any remaining air to escape, ensuring that the fuel system is completely filled with fuel.

The Holley R6354 carburetor also includes a number of other features designed to make installation and tuning easier. These include a built-in fuel pressure regulator, adjustable float height, and an easy-to-use adjustment screw for setting the idle mixture.

In summary, the Holley R6354 carburetor is a high-performance, easy-to-tune 2-barrel carburetor that is specifically designed for use with the 1972 Mercury Capri automobiles equipped with the 2.6L inline-4 engine and an automatic transmission. With its adjustable secondary metering block, high-quality materials, and built-in features, this carburetor is the ideal choice for anyone looking to improve the performance and reliability of their Mercury Capri.

Pros and Cons of Buying a Holley R6354 or R6994 Carburetor for a 1972 Mercury Capri 2.6L Automatic

The Holley R6354 and R6994 carburetors are popular choices for those looking to improve the performance of their 1972 Mercury Capri 2.6L automatic. These 2-barrel carburetors offer several advantages over the stock unit. However, like any aftermarket part, they come with their own set of pros and cons. In this article, we will discuss the key features, benefits, and drawbacks of these Holley carburetors.

1. Improved Air/Fuel Mixture: Holley carburetors are known for their ability to provide a more consistent and efficient air/fuel mixture, which can lead to increased horsepower and torque.

2. Adjustability: These carburetors offer a high degree of adjustability, allowing users to fine-tune the engine's performance for different driving conditions.

3. Durability: Holley carburetors are built to last, with high-quality materials and precise engineering, ensuring consistent performance over time.

4. Easy Installation: The Holley R6354 and R6994 carburetors are designed to fit the 1972 Mercury Capri 2.6L engine, making the installation process relatively straightforward.

1. Cost: Holley carburetors are more expensive than stock units. The additional cost may be a deterrent for some buyers.

2. Complexity: The high degree of adjustability offered by these carburetors can be overwhelming for some users. It may require a significant learning curve to fully understand and utilize the various adjustment options.

3. Fuel Economy: Holley carburetors may not offer the same level of fuel economy as stock units. This can lead to increased fuel consumption and higher operating costs.

4. Maintenance: Holley carburetors require regular maintenance to ensure optimal performance. This can include adjusting the mixture, checking the float levels, and cleaning or replacing various components.

The Holley R6354 and R6994 carburetors offer several advantages for those looking to improve the performance of their 1972 Mercury Capri 2.6L automatic. However, they also come with some disadvantages, such as cost, complexity, and potential fuel economy losses. Ultimately, the decision to purchase one of these carburetors depends on individual preferences, budget, and performance goals. If you are willing to invest in a high-performance carburetor and are willing to put in the time and effort to learn how to use it effectively, a Holley R6354 or R6994 carburetor may be the right choice for you. However, if you are looking for a more affordable and low-maintenance option, a stock carburetor may be a better fit.

part # r6354 prices

• $179.00-$189.00

specifications carbcaddie:

• for makes: Mercury
• brand: Holley
• type: Carburetor
• manufacturer warranty: 1 Month
• manufacturer part number: R6354
• material: Steel
• universal fitment: No
• vintage part: Yes
• country of origin: United States

payments carbcaddie:

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

seller carbcaddie:

• rating: 99.5%
• # reviews: 3154

shipping carbcaddie:

• class: Standard
• carrier: UPS
• service: UPS Ground
• cost: $22.00
• type: Calculated
• transit: 3-7 Days

general carbcaddie:

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

returns carbcaddie:

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

offer carbcaddie:

• sold: 0
• availability: In Stock
• started: May 25, 2026
• quantity: 1
• options: Ship-to-home

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