Edelbrock 1903 AVS2 Series Dual-Quad Carb,500 CFM,Electric Choke

#3251903

Edelbrock 1903 AVS2 Series Dual-Quad Carb,500 CFM,Electric Choke

Name: Edelbrock 1903 AVS2 Series Dual-Quad Carb,500 CFM,Electric Choke
Brand: Edelbrock
SKU: 3251903
Price: 569.95 USD
Availability: InStock
Rating: 5 (2 reviews)

2 Reviews

1 Question

Annular Flow Boosters deliver near EFI-like drivability that you can feel as soon as you step on the gas
Fuel distribution is refined by eight equally spaced orifices in the booster rings that replace down-leg boosters which simply dump raw fuel into the venturi

Type:

500 CFM (Dual Quad) / Electric Choke

500 CFM / Electric Choke 500 CFM / Manual Choke500 CFM (Dual Quad) / Manual Choke 650 CFM / Manual Choke 650 CFM / Electric Choke 800 CFM / Manual Choke 800 CFM / Electric Choke

$569.95

/each

In Stock

Quantity

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Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, 500 CFM CFM

Annular Flow Boosters deliver near EFI-like drivability that you can feel as soon as you step on the gas
Fuel distribution is refined by eight equally spaced orifices in the booster rings that replace down-leg boosters which simply dump raw fuel into the venturi
Flat spots are completely eliminated, and throttle response in the low- to mid-RPM range is improved tremendously with no sacrificing of that top-end power that Edelbrock is known for
The AVS2 is unaffected by engine backfires since there are no power valves to blow out
For fast and simple part-throttle tuning, metering rods and springs can be changed in seconds without carburetor removal or fuel draining

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Key Specs

Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	Electric
CFM Range	500-599 CFM
CFM	500 CFM

See more specs

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Edelbrock 1903 Details

Edelbrock's Annular Flow Booster technology brings superior fuel atomization to all dual-quad applications with the AVS2 500 CFM Carburetor #1903 that is specially calibrated for engines running two four-barrels.

Annular Flow Boosters deliver near EFI-like drivability that you can feel as soon as you step on the gas
Fuel distribution is refined by eight equally spaced orifices in the booster rings that replace down-leg boosters which simply dump raw fuel into the venturi
Flat spots are completely eliminated, and throttle response in the low- to mid-RPM range is improved tremendously with no sacrificing of that top-end power that Edelbrock is known for
The AVS2 is unaffected by engine backfires since there are no power valves to blow out.
For fast and simple part-throttle tuning, metering rods and springs can be changed in seconds without carburetor removal or fuel draining.
AVS2 carbs have the unique ability to "hold a tune" when compared to other carburetors
Your tuning and adjustments stay unchanged, so performance remains consistent
Updated primary and secondary booster clusters in the AVS2 offer the most accurate and up-to-date calibration available for today's fuels and octane levels
The unique Qwik-Tune Secondary Air Valve allows for limitless calibration of the secondary circuit
Adjustments can be with simple hand tools in seconds to suit your application
The AVS2 features a two-piece ease-of-tuning design that lets you make float level adjustments or replace internal components without draining the fuel from the carburetor or removing it from the engine
Satin finish
AVS2 Series is designed, manufactured, assembled and calibrated by Edelbrock in the USA

Single-carb AVS2 also available (1901/1902). For small-cubic-inch single carburetor engines, order the specially calibrated AVS2 500 CFM #1901 (electric choke) or #1902 (manual choke).

Charts

Installation Instructions (PDF)

Guides & Documents

Carburetors Installation Instructions (3251903)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Edelbrock 1903 Specifications

KEY SPECS
MFG. Part #	1903
Brand	Edelbrock
Carburetor Barrels	4-Barrel
Fuel Type	Gasoline
Choke Type	Electric
CFM Range	500-599 CFM
CFM	500 CFM
Carburetor Flange Type	4-Barrel Square Bore
Finish	Satin
Material Type	Aluminum
Color	Silver
Secondary Type	Mechanical
Fuel Inlet Type	Dual
Gasket(s) Included	Yes
New or Remanufactured	New
Throttle Linkage Type	Universal
Supercharged Application	No

GENERAL
Inlet Fitting	3/8"
GTIN Code	085347019038
Sold in Quantity	Each

Ratings & Reviews

2 Reviews

Overall Assessment

Customers value the product's easy installation and instant startup, requiring only minor adjustments for optimal use. The product's aesthetic appeal is praised, and its performance as a primary carburetor on a dual quad sets it apart. Users are confident in the product's reliability and would purchase again.

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2 reviews

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I would buy again

5.0

a year ago

Bob

San Diego, Ca.

Verified

Love it. Installed and started right up. Only requires minor adjustments.

Would Recommend

Edelbrock carbs a #1 for the street

5.0

a year ago

Farm rat

Central Wisconsin

Verified

This carb is being used as primary carb on a dual quad. I know it will preform as good as it looks.

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

1 Question • 1 Answer

Sort Questions

1979 Jeep cj7 with 304-5.0 , auto trans Edelbrock performer manifold . Can you recommend a throttle cable and bracket that would work with this carb ? Or the Holley truck avenger 470 ?

by DK7

• 7 years ago

1 answer

View Answer

1 of 1 questions shown