The Edelbrock Square-bore Carb to Spread-bore Manifold Adapter #2696 is designed to allow installation of the Edelbrock Performer Series carburetor on vehicles with the OEM (original equipment) spread-bore intake manifold (typically GM vehicles that were originally equipped with the Rochester Quadra jet carburetor). This kit will also work on Chrysler manifolds designed for the Thermo-Quad carburetor. It contains the necessary items to adapt the EPS carb to the OEM manifold.