Carb Calibration Kit - AVS2 Series - Metering Rods / Metering Jets / Springs / Case - Edelbrock Performer Carburetors - Kit

Edelbrock Calibration Kit for 1901 / 1902 / 1903 / 1904

The AVS2 Series Carburetor Calibration Kit #1940 is for tuners looking to custom-tune the performance of their #1901, #1902, #1903 or #1904 carburetor. This kit contains all of the necessary metering rods and jets that will allow you to adjust your AVS2 carburetor either richer or leaner for both cruising and power modes. This kit also includes an assortment of seven pairs of jets, five step-up springs, seven pairs of metering rods, metering rod retaining springs, six replacement hairpin springs and a calibration chart that tells which rod/jet combination to use, all organized in a handy reusable storage case.

Additional Information

The Edelbrock AVS2 Series Carburetor Calibration Kit #1940 is for tuners looking to improve the performance of their #1901, #1902, #1903 or #1904 carburetor.

Part Type

Carburetor Calibration Kit

Vehicle Compatibility and Return Conditions.

This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.

Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.

Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Calibration Kit, for Edelbrock 1901, 1902, 1903, and 1904 AVS2 500 Series Carburetor, Each

Edelbrock AVS2 Series carburetor calibration kits contain all the necessary metering rods and jets that will allow you to adjust your AVS2 carburetor—either richer or leaner for both cruising and power modes. Several kits are offered, each consisting of an assortment of jets, step-up springs, metering rods, retaining springs, replacement hairpin springs, and a calibration chart that tells which rod/jet combination to use for your carburetor model. A handy reusable storage case is included to hold kit contents. Order the kit recommended for your carb application.