What is Edelbrock AVS2 Series Carburetor?
The Edelbrock AVS2 Series Carburetor is a high-performance carburetor designed for use in a wide range of vehicles, including muscle cars, sports cars, and high-performance street machines. This carburetor is the culmination of years of research and development by Edelbrock, one of the leading manufacturers of performance engine components.
One of the key features of the AVS2 carburetor is its sophisticated design, which allows it to deliver precise fuel metering under a wide range of conditions. This is achieved through a number of advanced technologies, including a four-barrel design, annular booster venturis, and a secondary fuel metering system.
The annular booster venturis provide a more responsive throttle response by delivering a more direct and focused fuel charge, while the secondary fuel metering system provides a smooth transition from cruising to full-throttle power. This means that the AVS2 carburetor is able to deliver optimal performance and fuel efficiency in a wide range of driving conditions.
Another key feature of the AVS2 carburetor is its easy tunability. This is achieved through a number of user-friendly features, including fully adjustable metering rods and step-up springs, an adjustable secondary air valve, and a unique removable air cleaner stud. This allows drivers to easily tune their carburetor for optimal performance, whether on the street or at the track.
Overall, the Edelbrock AVS2 Series Carburetor is a high-performance carburetor that offers a wide range of benefits for drivers looking to maximize the power and efficiency of their engine. With its advanced design, easy tunability, and superior performance, it's no wonder that the AVS2 has become one of the most popular carburetors on the market today.
Frequently Asked Questions about edelbrock avs2 series carburetor
The Edelbrock AVS2 Series features annular flow primary boosters with a new calibration for improved off idle and cruising. The annular flow booster design also delivers improved fuel atomization to eliminate flat spots that can be encountered during idle to full throttle transitions.
AVS stands for air valve secondary, which describes the spring-loaded air-valve door. The Edelbrock carb uses a mechanical secondary but does not employ a secondary accelerator pump.
Specs
| Manufacturer | Edelbrock |
|---|
| Main Venturi Diameter | 1.19 |
| Body Height | 3.25 |
| Bore Diameter | Primary Bore 1.44; Secondary Bore 1.75 |
| Spring Force | 5" Hg (Orange) |
Edelbrock makes it easy to identify the AVS2 carburetor with its large tag on the front of the carb body. Otherwise, it looks the same, externally, as the previous AVS.
Basically, the AVS2 was designed to help your classic engine start quicker, run smoother, and allow for better low-end throttle response – all the benefits of EFI but without the electronics. When upgrading from a traditional down-leg booster carburetor, improved fuel economy is a definite positive!
Edelbrock AVS2 650 cfm Square Bore 4BBL Carburetor 5.0 out of 5 stars. Read reviews for average rating value is 5.0 of 5.
Air Valve Secondary
The AVS is an acronym for Air Valve Secondary, which is Edelbrock's line of entry-level carburetors intended for mild street engines. This line already enjoys a great reputation among street rodders as a carburetor that you can bolt on and reap immediately success.
Make sure your fuel pressure does not exceed 6.0 psi, optimum pressure is 5.5 psi.
Series carburetors. And is a traditional square bore carburetor. First of all the primary. Differences. Right are the butterfly sizes. And if you can see these two side by side the primaries.
Typical four-barrel carburetors are set up as either square-bore or spread-bore designs. The square-bore carbs have equally spaced and sized throttle bores while spread-bore carbs have two smaller primary bores and two larger secondary bores.
Edelbrock carbs tend to make a little less power but require less tuning they are also better over temperature changes. Holley are the opposite they make some more power but require more tuning and my experience is they require tuning when the weather changes from spring to summer then summer to fall.
The fuel pump pressure should never exceed 6.5 p.s.i. Take the top of the carburetor off and check for debris in the needle & seat, also inspect the needle tip to be sure it's not compromised.
Required fuel pressure can vary depending on your vehicle's engine and fuel system. Carbureted engines may require as little as 28 kPa (4 PSI), while modern multipoint fuel injected high-performance engines can require as much as 414 kPa (60 PSI).
Simple answer is no. You need an intake with dual bolt patterns to use either carb choice. Maybe you can buy an adapter ( although I can't think of one ) but that will change your intake somewhat because of height.
4-Hole tapered spacers are the go-to unless the spacer is going under an elbow. Open spacers only improve plenum volume, but won't pick up the CFM of the carburetor or throttle body the way the 4-hole tapered spacer does.
Note how the single plane offers a more direct path to the intake ports but this also shortens the runner length which hurts low-speed torque. The dual plane uses longer runner lengths which drastically improve low- and mid-range torque, making it a better choice for a street driven engine.
