Fits Holley 350/500 2-bbl. carburetor to quadra-jet (spread bore) bolt pattern with. Mr. Gasket carburetor adapter kits install quickly and easily. Gaskets, studs, nuts and washers are included. Adapters are made of die cast aluminum.

Features:

• Open Center
• Die Cast Aluminim
• Includes Hardware & Gaskets
• Thickness 1-1/8"