A Stage 2 has all of the features of a Stage 1 plus features fully recalibrated idle, off idle, main, accelerator pump and high speed circuits to match any modifications done to the engine such as intake manifold, headers, ignition or mild cam change. A Stage 2 features improved idle quality, instant throttle response and maximum torque and horsepower for street-strip vehicles, tow vehicles, RV's and watercraft with modified engines.

Rochester Quadrajet Stage 2 Carburetor; Chevy Pass. Car 305/350/400 ci Engines w/Dual Plane Alum. Intake Manifold/Headers 1 5/8 in.-1 3/4 in./Compression Ratio 8.5-9.5:1.