Edelbrock Manifold Dual Quad RPM Air Gap BB Chevy Oval Port

This is the Edelbrock Performer RPM Air-Gap Dual Quad intake manifold, built for Chevrolet big-block V8 engines displacing 396 to 502 cubic inches. It's specifically designed to work with oval port cylinder heads found on 1975 and earlier models. This manifold is a popular choice for street performance builds looking to gain power in the 1500 to 6500 rpm range. It stands about 7/8" taller than Edelbrock's low-profile dual-quad intake, allowing for its unique Air-Gap design.

The Air-Gap feature is a key aspect of this manifold's design. It creates a separate chamber around the intake runners, keeping them isolated from the hot engine valley. This separation helps to keep the incoming air-fuel mixture cooler and denser, which translates to more power and improved throttle response. The dual-quad setup means it's designed to accept two four-barrel carburetors, offering a significant airflow advantage for engines built for performance. This manifold is well-suited for a wide range of Chevrolet and GMC vehicles from the mid-60s through the late 70s, including popular models like the Impala, Chevelle, and C10 pickups.

For those looking to maximize the potential of this dual-quad setup, Edelbrock offers a Progressive Throttle Linkage Kit, part number 7094, which is sold separately. This kit helps ensure smooth and coordinated operation of both carburetors, especially at lower engine speeds. Remember that this manifold is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and setup details.