Edelbrock AVS2 Series Carburetor Calibration Kit for 500 CFM Carb

Fine-tuning carburetor calibration is important for maximizing drivability, throttle response, and fuel delivery. Get the best out of your AVS2 Series 500 CFM carburetor with this calibration kit from Edelbrock. It includes everything you need to adjust fuel mixtures for both cruising and power operation. Mix and match the included metering rods, primary jets, and step-up springs to find the perfect combo for your application.

Features and Benefits:
- Designed for Edelbrock AVS2 Series 500 CFM carburetors
- Tunes cruise and power fuel curves
- Helps improve throttle response
- Supports richer or leaner fuel adjustments
- Helps reduce hesitation and backfiring
- Includes calibration reference chart
- Complete with reusable storage case

Vehicle Fitment:
- Engines equipped with an Edelbrock AVS2 Series 500 CFM carburetor

Kit Includes:
- (7) pairs of metering rods
- (7) pairs of primary metering jets
- (5) step-up springs
- Metering rod retaining springs
- (6) replacement hairpin springs
- Rod/jet tuning chart
- Reusable storage case

Metering Rod Sizes:
- .063" x .037"
- .063" x .047"
- .065" x .047"
- .067" x .049"
- .068" x .047"
- .068" x .052"
- .073" x .052"

Metering Jet Sizes:
- .080"
- .083"
- .086"
- .089"
- .092"
- .098"
- .100"

Step-Up Spring Ratings:
- Blue: 3" Hg
- Yellow: 4" Hg
- Orange: 5" Hg
- Pink: 7" Hg
- Silver: 8" Hg

Tech Tip: The kit is compatible with the following Edelbrock carburetor part numbers: 1901, 1902, 1903, and 1904.

Please Note: This calibration kit is intended ONLY for Edelbrock AVS2 Series 500 CFM carburetors. Always follow Edelbrock tuning guidelines and make incremental adjustments for best results.