Quadrajet Stage 2 Carb 66-73 GM Divorced Choke

The JET PERFORMANCE Quadrajet Stage 2 Carb 66-73 GM Divorced Choke is a remanufactured 4-barrel carburetor engineered for optimal fuel delivery and engine response on classic GM platforms spanning 1966 to 1973. This 750 CFM spread-bore unit combines proven Quadrajet architecture with a divorced choke system that eliminates the complexity of traditional integral designs, delivering cleaner cold starts and more responsive throttle transition across the rpm range. The gold chromate finish provides corrosion resistance while signaling quality remanufacturing standards.

This Stage 2 variant features air-valve secondary operation—a critical specification for carburetors engineered on Chevrolet platforms of this generation. The single-inlet design interfaces with factory fuel lines while the divorced choke mechanism operates independently of the main body, allowing precise calibration for different ambient conditions without affecting primary circuit tuning. At 11.05 lbs with dimensions of 14.6 x 11.2 x 14.7 inches, this carburetor maintains the factory footprint required for direct bolt-on installation into compatible 1966–1973 GM engines without modification to air cleaner assemblies or intake manifold gaskets.

Buyers restoring or tuning small-block and big-block Chevy engines from the mid-to-late 1960s and early 1970s rely on the Quadrajet Stage 2 for street performance and part-throttle drivability. This remanufactured unit suits owners seeking factory-authentic carburetor specifications without the uncertainty of unknown core history. The divorced choke design reduces stumbling on acceleration and provides faster idle-down transitions—measurable improvements over original equipment that benefit both weekend drivers and serious restorationists managing fuel economy alongside responsiveness.

The Quadrajet represents GM's engineering response to emissions regulations and drivability standards of the era. The 750 CFM rating aligns with the fuel system capacity of most 1966–1973 small-block and selected big-block engines, ensuring proper float level behavior and avoiding lean-stumble conditions at cruise. Remanufactured units from JET PERFORMANCE undergo core reconditioning, gasket replacement, and flow validation to restore original performance specifications, making this carburetor a dependable choice for engine swaps, restorations, and performance builds targeting period-correct authenticity.