Quadrajet Stage 1 Carb 66-73 GM Divorced Choke

The Quadrajet Stage 1 Carb 66-73 GM Divorced Choke is a purpose-built carburetor upgrade for classic General Motors muscle cars and performance vehicles from the mid-1960s through early 1970s. This carburetor addresses a critical need for enthusiasts restoring or modifying second-generation Quadrajets: the divorced choke design eliminates the factory integrated choke housing, allowing cleaner engine bay aesthetics, better airflow management, and compatibility with modern ignition and fuel system upgrades.

Whether you're rebuilding a Chevelle, Chevrolet, Pontiac, or Oldsmobile, this Stage 1 variant delivers improved cold-start performance and drivability over stock carburetor designs. JET PERFORMANCE engineered this Stage 1 carburetor with optimized calibration for the divorced choke configuration, meaning the choke mechanism is externally mounted or remote-operated rather than mechanically integrated into the main body. This design reduces parasitic heat absorption, improves metering control, and simplifies installation on modified engines where stock manifold configurations don't fit.

The carburetor incorporates high-flow venturi passages and precision idle circuits tuned specifically for 1966–1973 GM applications, delivering smooth transitions from idle to cruise and responsive mid-range throttle response. The robust aluminum casting and stainless steel internals withstand repeated heat cycling and fuel system variations common in vintage restorations. This Stage 1 carb is an excellent choice for performance enthusiasts looking to enhance their classic vehicles.