HOLLEY Cfm Double Pumper Carburetor Electric Choke L-4778-2 Rod

( Brand: Holley ), ( Manufacturer Part Number: L-4778 ), ( Choke Type: Electric ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Country/region Of Manufacture: United States )

Review HOLLEY Cfm Double Pumper Carburetor Electric Choke Hot Rod fits STREET 700

Holley L-4778 700 CFM Double Pumper Carburetor with Electric Choke (L-4778-2) - A High-Performance Solution for Your Street Rod

The Holley L-4778 700 CFM Double Pumper Carburetor with Electric Choke (L-4778-2) is a high-performance, fuel delivery system engineered for serious enthusiasts seeking optimal power and control for their street rods. This meticulously crafted carburetor is designed to deliver exceptional fuel mileage, smooth idling, and a thrilling driving experience.

The 700 CFM double pumper design of this Holley carburetor introduces a larger airflow capacity. The double pumper configuration generates high vacuum in the secondary circuit, ensuring potent low-end torque and impressive mid-range power output. This distinctive design also allows for larger main jets, helping to maintain good fuel economy and consistent idle quality across a broad RPM spectrum. The finely tuned metering rods and emulsion tubes enable seamless fuel delivery and provide excellent fuel atomization.

The L-4778-2 variant features an electric choke mechanism from Holley's Synchro-Jet series, combining convenience and reliability. This innovative setup progressively engages the choke, leading to fast Idle Learning and efficient battery draw. Moreover, it minimizes the chances of vacuum leaks often found in conventional cable-operated choke systems. Likewise, a more robust and efficient vacuum operation results in shorter warm-up times and predictable cold start performance, keeping you ready for errand runs or weekend cruising.

The L-4778-2 is designed for easier installation with a variety of features. FlexFuel compatibility in this carburetor allows the use of ethanol blends up to E85, giving owners the flexibility to optimize their fuel choices based on individual preferences, fuel economy, or regional availability. A dual-feed fuel system helps prevent fuel starvation, ensuring smooth operation under heavy acceleration, while the external adjustment screws on the primary and secondary metering rods allow for fine-tuning and easy calibration of your engine. Should you require installation flexibility, the Holley L-4778-2 can also be adapted to work with a number of optional Intake manifolds or other Holley fuel distribution systems.

Equipping your street rod with the Holley L-4778-700 CFM Double Pumper Carburetor with Electric Choke (L-4778-2) means paving the way for optimal engine performance, greater torque, and consistent driving experiences on the road. Whether you're taking your classic car on a daily commute, a leisurely ride, or out for a weekend show, this high-performance carburetor is the ideal addition to your street rod package.

The Holley L-4778 700 CFM Double Pumper Carburetor (Part No. L-4778-2 with electric choke) is a popular carburetor choice among hot rod builders and enthusiasts. This carburetor offers several benefits, but it also comes with some potential drawbacks. Here's a list of pros and cons to help you make an informed decision:

1. High CFM (Cubic Feet per Minute) rating: With a 700 CFM rating, the Holley L-4778 carburetor is suitable for high-performance applications, making it an excellent choice for street rods and custom cars.

2. Double Pumper System: This design offers improved vacuum secondaries, allowing for better idle quality, quicker throttle response, and improved power delivery.

3. Electric Choke: Electric chokes are more reliable and easier to use compared to traditional cables, which can offer more convenience and a smoother start-up process.

4. Custom Design and Adjustability: Holley carburetors are known for their high levels of adjustability. The Holley L-4778 Double Pumper Carburetor is no exception, offering various tuning options to help optimize engine performance.

1. Complexity: The double-pumper design and various adjustment options require more time and expertise to set up correctly. This complexity could lead to longer installation times and potentially higher labor costs.

2. Cost: The Holley L-4778 700 CFM Double Pumper Carburetor with an electric choke may be more expensive compared to other carburetor options, both in terms of initial cost and ongoing maintenance.

3. Requires Precise Tuning: Since the carburetor offers a high level of adjustability, it may require more time and expertise to tune it for optimal performance. Misunderstood or incorrect adjustments can lead to lean or rich fuel mixtures, which could negatively impact engine performance.

The Holley L-4778 700 CFM Double Pumper Carburetor with an electric choke boasts numerous benefits for high-performance applications, such as improved power delivery, better idle quality, and convenience. However, it comes with some potential drawbacks like complexity, cost, and the requirement for precise tuning. If you have the necessary expertise or are willing to invest time and resources into obtaining it, this carburetor can offer excellent performance for your street rod project. Otherwise, you may want to consider a simpler, lower-cost carburetor option. Ultimately, it's essential to weigh the pros and cons carefully to determine if the Holley L-4778 Double Pumper Carburetor is the best fit for your build.

Details:

Comes as pics. The carb moves freely but has been sitting so it may need to be rebuilt. I sometimes make mistakes, but i'm not out to cheat anyone, or sell you something you're 100% happy with. Let me know if there is an issue.

A if you follow the golden rule, and treat me as would like to be treated, I will do my best make it right by. HOLLEY 700 cfm DOUBLE PUMPER CARBURETOR L-4778-2 Electric CHOKE STREET HOT ROD.

part #: l4778 prices

• $375.00-$509.95

specifications carbcoon:

• for models: 700, Street
• brand: Holley
• mpn: L-4778
• choke type: Electric
• type: Carburetor
• mounting flange type: Square Bore
• country/region of manufacture: United States

returns carbcoon:

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

seller carbcoon:

• # reviews: 3675
• rating: 100.0%
• city: Fair Oaks, California

payments carbcoon:

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

shipping carbcoon:

• cost: $28.00
• type: Fixed
• carrier: FedEx
• service: FedEx Ground or FedEx Home Delivery
• class: Standard
• transit: 5-8 Days

offer carbcoon:

• options: Ship-to-home
• best offers: True
• quantity: 1
• availability: In Stock
• sold: 0
• started: January 1, 2025

general carbcoon:

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

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