AVS2 Thunder Series Carb 650 CFM Black

The Edelbrock AVS2 Thunder Series Carb 650 CFM Black is a four-barrel carburetor engineered for engines demanding reliable fuel metering across a wide RPM band. This 650 CFM square-bore unit combines traditional mechanical secondary operation with electric choke actuation, delivering responsive throttle response and precise fuel delivery in street and light performance applications. The black powder-coat finish provides corrosion resistance while maintaining the classic appearance expected of quality carburetors.

The AVS2 platform features a dual-inlet design that accommodates fuel line flexibility during installation and operation. The 650 CFM rating suits engines in the 350–400 cubic-inch range running at moderate boost levels, with the electric choke managing cold-start enrichment without manual adjustment. Mechanical secondary barrels unlock progressively as engine load increases, maintaining efficiency under part-throttle driving while providing full fuel supply under acceleration. The aluminum construction minimizes weight while the square-bore design ensures compatibility with OEM and aftermarket intake manifolds spec'd for this bore diameter.

This carb suits builders and engine enthusiasts restoring classic muscle cars, street rods, and light-duty performance trucks where a carbureted fuel system is preferred or required. Users can dial in idle quality, transition circuits, and main jets to match their specific engine combination and intended duty cycle. The Edelbrock AVS2 platform is known for responsive tuning and predictable behavior across varying atmospheric conditions and fuel grades.

Weighing 8.92 pounds and measuring 13.5 inches tall with a 7.5-inch width, the unit fits standard engine bays with proper clearance verification. Before installation, confirm intake manifold bore diameter and fuel line routing to ensure hassle-free fitment.