Aeroflow die cast aluminium adapter carburettor spacer improve air/fuel distribution and reduce the fuel temperature for a denser fuel mixture, reduce vapor lock, and add additional plenum volume to increase engine performance. They help with linkage clearance on aftermarket or custom throttle cable setups.
This adapter spacer specifically allows you to adapt any square bore carburettor to a spread bore flange on the intake manifold. It can also the other way to adapt a spread bore carburettor to a square bore flange on the intake manifold. This spacer includes gaskets and mounting hardware required.