Edelbrock AVS2 650 Series Calibration Kit for 1905 & 1906 Superchargers — shims & hardware for precise valve setup

The Edelbrock Calibration Kit for AVS2 650 Series (1905 & 1906) is a purpose-built set of tools and components that lets you accurately tune and calibrate your supercharger’s air valve system for reliable performance.

This calibration kit was created for owners and technicians working with Edelbrock AVS2 650 Series superchargers who need repeatable, shop-ready adjustments. It contains the fittings, shims, and calibration hardware engineered to match the OEM tolerances of the AVS2 650 family so you can achieve consistent actuator and valve settings without guesswork. The kit supports routine setup, troubleshooting after service, and fine-tuning after component swaps.

What exactly comes in the kit and why does it matter?

The kit includes the specialized fasteners, alignment shims, and calibration hardware required to set the AVS2 650 Series air valve system to factory or performance-oriented specifications. Each item is chosen to maintain correct clearances and actuator behavior under operating loads.

• Precision shims sized for fine valve gap adjustments
• Replacement linkage hardware and mounting fasteners
• Calibration spacers and indexing components for correct actuator travel
• Instructions for step-by-step setup and torque guidance

How does this kit help during installation or maintenance?

Using the kit prevents common setup errors that can cause poor throttle response or uneven boost delivery. It ensures the air valve and actuator operate within intended ranges after installation, rebuild, or service.

• Simplifies aligning the actuator to the valve arm for repeatable travel
• Restores OEM clearance after disassembly or part replacement
• Reduces trial-and-error adjustments during bench or vehicle tuning

Is this kit compatible with my AVS2 650 1905 or 1906 supercharger?

Yes — the calibration kit is made specifically for the Edelbrock AVS2 650 Series 1905 and 1906 models. It matches the geometry and mounting points used on those assemblies so parts fit without modification.

• Designed to interface directly with AVS2 650 Series housings and actuators
• Includes correct fasteners and spacer sizes for 1905 & 1906 variants
• Eliminates the need for aftermarket workaround parts during setup

What tools or skills do I need to use the calibration kit?

Basic mechanical skills and standard workshop tools are enough to use the kit, though familiarity with supercharger assemblies and torque procedures helps. The included guidance reduces setup errors, but careful measurement and patience yield the best results.

• Common hand tools: torque wrench, hex/metric sockets, feeler gauges
• Comfort with following torque specs and verifying actuator travel
• Optional: service manual or tech sheet for vehicle-specific installation notes

Who is this for: This calibration kit is ideal for professional tuners, restoration shops, and hands-on enthusiasts who maintain or upgrade Edelbrock AVS2 650 Series superchargers (models 1905 and 1906). If you want accurate valve travel, dependable actuator response, and a documented way to restore OEM clearances after service, this kit gives you the parts and guidance needed to achieve those outcomes without improvisation.