Carburetors that help retain heat equal more horsepower Suitable for H-OLLEY, CHEVY, Ford and M-opar, suitable for any square hole carburetor Package includes Spacer,Gaskets,Carb. Studs,Nuts with Washers It will Not Fit Holley Spread Bore Carburetors or Quadra-jet Carburetors. Please check the part number / model / make / year carefully before purchasing to insure fitment. YUCHENSHLP specializes in providing high-performance repair and replacement parts for various automobiles, we support 365 DAYS returns and exchanges. If you have any questions, please feel free to contact us, we will solve it for you as soon as possible, customer satisfaction is our unremitting pursuit.