The Edelbrock Carburetor Adapter is an open center adapter made of steel with a natural finish. The gaskets are included for installation and it adapts almost any carburetor to any intake. Welds are done with a robotic projection welder for accuracy and consistent quality. The adapter includes a large 46mm piston for more consistent damping and the durable powder coated finish has the best corrosion resistance. Tube ends are rolled closed for leak-free construction.