Spectre Carburetor Adapter (Spread Bore to Square Bore)

Spectre is known for making a wide range of engine components, and this carburetor adapter is a solid option when you need to make a specific fuel system connection. This adapter is designed to let you fit a Holley, Edelbrock, or Carter/AFB 4-barrel carburetor onto a Quadrajet intake manifold. It’s a common need when swapping components or building a custom setup.

The main plate is made from die-cast aluminum, which means it’s durable and should fit right without issues. It comes with both a universal open spacer and a 4-hole insert spacer, giving you options for tuning. The design aims to increase power by raising air/fuel velocity as it enters the intake manifold. You won't need to hunt for extra parts because Spectre includes all the necessary gaskets and hardware for a straightforward installation.