Description These insulated spacers with gaskets are designed to help prevent heat transfer from your engine to your carburetors. Overheated carburetors can cause your engine to run poorly due to the fuel inside the carburetor boiling and vaporizing. Help your engine run cooler and smooth, get your set today. Can be used on all Weber IDF, Empi HPMX and Dellorto DLRA 40/44/48 carburetors. Click here to view all 3 versions of this gasket.