HOLLEY R7991 Ply Cly 2BBL. 1978 Cly.

( Brand: Holley ), ( Type: Carburetor ), ( Manufacturer Warranty: 1 Month ), ( Fitment Type: Direct Replacement ), ( Manufacturer Part Number: R7991 ), ( Mounting Hardware Included: No ), ( Material: Steel ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review HOLLEY 2bbl. Chrysler Dodge-ply. 1978 Cly. Inch fits 360

The Holley 2bbl R7991 carburetor is a high-performance replacement option for Chrysler, Dodge, and Plymouth vehicles manufactured in 1978, specifically those equipped with the 360 CID engine and the CLY intake manifold. This carburetor is designed to deliver improved throttle response, increased fuel efficiency, and enhanced power output compared to the original equipment.

The Holley R7991 carburetor features a 750 CFM double-pumper design, which ensures ample airflow for larger engines. It comes with a 500 cfm primary and a 250 cfm secondary venturi, allowing for a wide fuel range and optimal combustion. The secondary circuit is designed to provide additional fuel during wide-open throttle conditions for optimal power and performance.

The Holley carburetor is constructed using high-quality materials, including a billet aluminum base plate, brass bodies, and hard anodized aluminum adjusters. These materials provide excellent durability and resistance to corrosion, ensuring long-lasting performance.

The carburetor is also equipped with Holley's proven Accu-Mizer II fuel metering system, which allows for precise fuel delivery and easy tuning. The system includes a built-in fuel pressure regulator, eliminating the need for an external regulator. The secondary circuit also includes a power valve that can be adjusted for optimal performance.

The Holley R7991 carburetor is designed to be easy to install and tune, with factory-set jets and needles for easy starting and reliable idling. It also includes a built-in electric choke, making it a perfect drop-in replacement for factory carburetors. The carburetor is also compatible with Holley's EFI systems, allowing for a seamless transition to electronic fuel injection.

The Holley R7991 carburetor comes with a one-year warranty against manufacturing defects, providing peace of mind to customers. It is shipped complete with all necessary hardware and gaskets, making it a convenient and hassle-free upgrade option for your 1978 Chrysler, Dodge, or Plymouth vehicle.

In summary, the Holley R7991 2bbl carburetor is a high-performance upgrade option for 1978 Chrysler, Dodge, and Plymouth vehicles equipped with a 360 CID engine and a CLY intake manifold. It delivers improved throttle response, increased fuel efficiency, and enhanced power output, with a 750 CFM double-pumper design and Holley's proven Accu-Mizer II fuel metering system. The carburetor is constructed using high-quality materials, is easy to install and tune, and comes with a one-year warranty.

The Holley R7991 2bbl carburetor is a popular choice for restoring or upgrading 1978 Chrysler, Dodge, and Plymouth vehicles with the 360 cubic inch engine. Here are some pros and cons to help you make an informed decision about purchasing this carburetor.

1. Holley is a well-known brand in the automotive aftermarket industry, known for producing high-quality carburetors.

2. The R7991 is a 2-barrel carburetor, which provides better fuel efficiency than a 4-barrel carburetor for daily driving.

3. The Holley carburetor offers improved idle quality and better throttle response compared to the original equipment.

4. It comes with a 1-year limited warranty.

5. The Holley carburetor is easy to tune and maintain, making it a popular choice among car enthusiasts.

1. The Holley R7991 carburetor may require some modifications to fit properly on some 1978 Chrysler, Dodge, and Plymouth vehicles.

2. Some users have reported that the carburetor can be quite noisy under heavy acceleration.

3. The installation process can be complex, especially for those who are not familiar with carburetor rebuilding or tuning.

4. The Holley carburetor may require more frequent maintenance than the stock carburetor due to its high-performance design.

5. The price point of the Holley R7991 carburetor may be higher than some other aftermarket options.

The Holley R7991 2bbl carburetor offers several advantages over the stock carburetor for 1978 Chrysler, Dodge, and Plymouth 360 engines. It provides better fuel efficiency, improved idle quality, and better throttle response. However, it may require some modifications to fit properly, and the installation process can be complex. Additionally, the carburetor may be noisier than the stock carburetor and may require more frequent maintenance. Ultimately, if you are looking for improved performance and are willing to invest in a high-quality aftermarket carburetor, the Holley R7991 is a solid choice. However, if you are on a tight budget or prefer a more straightforward installation process, there may be other options to consider.

If you are looking for a high-performance carburetor for your 1978 Chrysler, Dodge, or Plymouth 360 engine, the Holley R7991 2bbl carburetor is a worthwhile investment. It offers several advantages over the stock carburetor, including improved fuel efficiency, better idle quality, and improved throttle response. However, it may require some modifications to fit properly, and the installation process can be complex. Make sure to consult the Holley installation guides and seek the help of a professional if necessary. Additionally, be prepared for some additional maintenance requirements due to the high-performance design of the carburetor.

part # r7991 prices

• $215.95-$493.95

specifications carbcaddie:

• for models: 360
• for makes: Chrysler, Dodge
• brand: Holley
• type: Carburetor
• manufacturer warranty: 1 Month
• fitment type: Direct Replacement
• manufacturer part number: R7991
• mounting hardware included: No
• material: Steel
• vintage part: Yes
• country of origin: United States

seller carbcaddie:

• rating: 99.5%
• # reviews: 3153

shipping carbcaddie:

• type: Calculated
• carrier: USPS
• transit: 4-6 Days
• service: USPS Priority Mail Large Flat Rate Box
• class: Expedited
• cost: $27.76

general carbcaddie:

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

returns carbcaddie:

• policy: No Returns

offer carbcaddie:

• quantity: 1
• options: Ship-to-home
• started: May 24, 2026
• availability: In Stock
• sold: 0

payments carbcaddie:

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

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