Purchase a Holley Renew Kit next time a carburetor rebuild is due and you will be assured of using only genuine Holley factory service parts. This really is the only sure way of knowing that your Holley carburetor will be brought back to original specifications and like new condition. The Renew Kit package includes new gaskets, O-rings, pump diaphragm(s), needle and seat(s), power valve(s), and a detailed instruction sheet to take you step-by-step through the rebuilding process. All the parts and information necessary for a professional rebuild are included. Leave the guessing to others. Be assured with Holley Renew Kits.