fits model: H8, Javelin. make: Amc. year: 1969.

( Brand: Carter ), ( Manufacturer Part Number: 4661S ), ( Type: American Motors )
The Carter AFB 4-barrel carburetor, model 4661S, is a classic automotive component that was originally designed for the 1969 AMC Javelin equipped with a 290 cubic inch V-8 engine and an automatic transmission. This carburetor is a testament to Carter's long-standing reputation for providing reliable and high-performance fuel delivery systems.
The Carter 4661S is a 4-barrel carburetor, which means it has four individual barrels that allow for increased air and fuel intake, resulting in enhanced engine performance. The four barrels are arranged in a quad configuration, with two barrels on each side of the main body, and are connected by a central intake manifold. Each barrel is equipped with a choke control for easy cold start-ups.
The main body of the 4661S carburetor is made of durable cast aluminum, which not only provides excellent heat dissipation but also adds to the overall aesthetic appeal of the engine bay. The carburetor features a large, round air cleaner housing that is secured by six bolts, providing a secure and leak-free connection to the intake manifold.
The 4661S carburetor is equipped with a vacuum secondary system, which allows for additional fuel enrichment under heavy load or during acceleration. This system is controlled by a vacuum diaphragm located inside the carburetor's main body. The diaphragm is connected to a vacuum source, such as the engine's intake manifold, and moves in response to changes in engine vacuum, allowing for precise adjustment of fuel flow.
The 4661S carburetor is equipped with a primary metering rod, which controls the initial fuel flow to the engine. The rod is adjustable, allowing for fine-tuning of the carburetor's performance to suit the specific engine and driving conditions. The carburetor also features a secondary metering system, which provides additional fuel to the engine during high-load situations.
The 4661S carburetor is equipped with a float-style fuel bowl, which is designed to maintain a constant level of fuel in the carburetor. The float is connected to a fuel level sensor, which triggers the fuel pump to deliver more fuel to the bowl when it drops below the preset level. The carburetor also features a fuel pressure regulator, which maintains a consistent fuel pressure in the fuel line, ensuring optimal fuel delivery to the engine.
The 4661S carburetor is equipped with a mechanical fuel pump, which is located in the fuel tank. The pump is connected to the carburetor via a fuel line and a fuel filter, which removes any debris or contaminants that may be present in the fuel. The pump delivers fuel to the carburetor at a consistent pressure, ensuring reliable engine performance.
The 4661S carburetor is equipped with a throttle linkage, which connects the carburetor to the accelerator pedal. The linkage allows for precise control of the fuel flow to the engine, ensuring smooth and consistent power delivery. The carburetor also features a throttle position sensor, which provides feedback to the engine control module (ECM) to optimize fuel and ignition timing for improved fuel efficiency and performance.
In conclusion, the Carter 4661S AFB 4-barrel carburetor is a high-performance fuel delivery system that was designed for the 1969 AMC Javelin 290 V-8 automatic. This carburetor features a 4-barrel configuration, a vacuum secondary system, a primary metering rod, and a float-style fuel bowl. The carburetor is equipped with a mechanical fuel pump, a throttle linkage, and a throttle position sensor, ensuring reliable and efficient fuel delivery to the engine. With its durable cast aluminum construction and easy-to-adjust settings, the 4661S carburetor is a great choice for anyone looking to upgrade their classic AMC Javelin.
Pros of buying a Carter 4661S AFB 4-barrel carburetor for a 1969 AMC Javelin with a 290 V-8 and automatic transmission:1. Improved engine performance: The 4-barrel carburetor provides more air and fuel mixture to the engine, which can result in increased horsepower, torque, and overall performance.
2. Smoother idle and acceleration: The 4-barrel carburetor can provide smoother and more consistent idle and acceleration, making the vehicle more enjoyable to drive.
3. Better fuel economy: A well-tuned 4-barrel carburetor can improve fuel economy by providing the engine with the optimal air-fuel mixture, resulting in fewer fuel waste and better gas mileage.
4. Increased resale value: A 4-barrel carburetor is a desirable feature for many classic car enthusiasts, which can increase the resale value of the vehicle.
Cons of buying a Carter 4661S AFB 4-barrel carburetor for a 1969 AMC Javelin with a 290 V-8 and automatic transmission:1. Complexity: 4-barrel carburetors can be more complex to adjust and maintain compared to single-barrel carburetors, which can be time-consuming and require specialized tools and knowledge.
2. Higher cost: 4-barrel carburetors can be more expensive to purchase and install compared to single-barrel carburetors, which can add to the overall cost of owning and maintaining the vehicle.
3. Increased emissions: A 4-barrel carburetor can produce more emissions due to its larger air and fuel mixture, which can be a concern for those living in areas with strict emissions regulations.
4. Potential for engine damage: If not properly tuned or maintained, a 4-barrel carburetor can cause engine damage by providing too much or too little air and fuel mixture, which can result in detonation or other engine problems.
Conclusion:A Carter 4661S AFB 4-barrel carburetor can provide improved engine performance, smoother idle and acceleration, and better fuel economy for a 1969 AMC Javelin with a 290 V-8 and automatic transmission. However, it is important to consider the complexity, higher cost, potential for increased emissions, and potential for engine damage before making a purchase. If you are willing to invest the time and money to properly maintain and adjust the carburetor, it can be a worthwhile upgrade for your classic car.
Recommendation:If you are considering purchasing a Carter 4661S AFB 4-barrel carburetor for your 1969 AMC Javelin, it is recommended to do your research and consult with a knowledgeable mechanic or carburetor specialist to ensure that it is the right fit for your vehicle and driving needs. Additionally, consider investing in a quality tuning kit and tools to properly adjust and maintain the carburetor to ensure optimal performance and prevent engine damage.
Choke threads are chipped. Carter AFB 4-barrel carburetor, stamp number 4661S with date code H8. Carb core appears to be mostly complete. See pics for condition.
Core for rebuilding or parts. Linkage moves free. Please verify part number and pics match your application.