When you first install a carburetor, spray the fuel inlet of the carburetor with carburetor cleaner to help lubricate the needle valve.. We equipped the carburetor with gaskets. 's carburetor has undergone strict engine testing before leaving the factory to ensure that every carburetor is qualified!. 1973-75 250 1975 214 NOVA ONLY,1973-74 CHECKER 250,1973 GMC 250, 292. This carburetor is for a standard original type of installation for the vehicles above only.manual adjustment.
