fits model: M5, 327, Chevelle. make: Chevrolet, Chevy. year: 1966.

( Brand: Carter ), ( Manufacturer Part Number: 4028S ), ( Type: Nova )
The Carter AFB 4028S AVS 4-barrel carburetor is a classic piece of automotive history, specifically designed for the 1966 Chevrolet Chevelle with a 327 V-8 engine. This carburetor, manufactured by Carter, is a testament to the engineering prowess of its time, offering impressive performance and fuel efficiency.
The Carter 4028S AVS carburetor features a 4-barrel design, which allows for a larger air intake, resulting in increased horsepower and torque. The AVS (Air Valve Secondary) system is a progressive fuel metering system that optimizes air-fuel mixture under varying engine loads and speeds, ensuring optimal combustion and engine performance.
The body of the carburetor is made of durable cast aluminum, which not only provides strength but also helps in heat dissipation. The carburetor's primary and secondary throttle bodies are equipped with vacuum secondaries that respond to engine vacuum, further enhancing performance and fuel efficiency.
The Carter 4028S AVS 4-barrel carburetor is equipped with a vacuum-operated accelerator pump that provides additional fuel for smooth acceleration. The pump is activated by engine vacuum, delivering fuel directly to the throttle bodies during rapid acceleration, ensuring a smooth power delivery.
The carburetor also features a vacuum-operated choke mechanism that allows for easy cold starting. The choke system provides a rich fuel mixture, which aids in the easy ignition of the engine during cold starts.
The Carter 4028S AVS 4-barrel carburetor is a direct replacement for the original equipment on 1966 Chevrolet Chevelle 327 V-8 engines. It comes with all necessary hardware for installation, including gaskets, bolts, and mounting brackets. The carburetor is also easy to tune, thanks to its adjustable idle mixture screws and throttle stop screws.
In conclusion, the Carter AFB 4028S AVS 4-barrel carburetor is a high-performance carburetor that offers a classic look and exceptional performance. It is a perfect upgrade for any 1966 Chevrolet Chevelle 327 V-8 engine, providing improved fuel efficiency, power, and acceleration.
Pros of buying a 1966 Chevrolet Chevelle with a Carter 4028S AVS 4-barrel carburetor:1. Performance: The 4-barrel carburetor provides more air and fuel mixture to the engine, resulting in improved engine performance, increased horsepower, and better acceleration.
2. Fuel Efficiency: The 4-barrel carburetor can help improve fuel efficiency by providing a precise air-fuel mixture, which can result in better gas mileage.
3. Retro Appeal: The Carter 4028S AVS 4-barrel carburetor is a classic piece of automotive history, and installing it on a 1966 Chevrolet Chevelle can add to its retro appeal.
Cons of buying a 1966 Chevrolet Chevelle with a Carter 4028S AVS 4-barrel carburetor:1. Complexity: The 4-barrel carburetor is more complex than a single-barrel carburetor, which means it requires more maintenance and tuning to ensure proper operation.
2. Cost: The Carter 4028S AVS 4-barrel carburetor is more expensive than a single-barrel carburetor, and installing it on a 1966 Chevrolet Chevelle can add to the overall cost of the vehicle.
3. Availability: Original Carter 4028S AVS 4-barrel carburetors are becoming increasingly rare, which can make finding a replacement part or repairing the carburetor more difficult and expensive.
Conclusion:The Carter 4028S AVS 4-barrel carburetor can provide improved engine performance and fuel efficiency for a 1966 Chevrolet Chevelle, but it also comes with increased complexity, cost, and potential availability issues. If you are willing to invest the time and money to maintain and repair the carburetor, it can be a worthwhile upgrade for your Chevelle. However, if you are looking for a more straightforward and less expensive option, you may want to consider a single-barrel carburetor instead. Ultimately, the decision to install a Carter 4028S AVS 4-barrel carburetor on your 1966 Chevrolet Chevelle should be based on your personal preferences, budget, and maintenance capabilities.
Carb core has been partially taken apart and is missing a lot of pieces. Carter AVS 4-barrel carburetor, stamp number 4028S with date code M5. Linkage moves free. Core for rebuilding or parts.
Please verify part numbers and pics match your application. See pics for condition.