Holley Carburetor Renew Kit 2300 Models # HO37-474Holley Carburetor Renew Kit 2300 Models # HO37 474 "Carburetor Rebuild Renew Kit, Holley 2300 Models, Kit Holley Carburetor Renew Kits Do you need to refurbish your tired Holley carburetor? A Holley Renew kit brings your carb back to original specs and like new condition! These carburetor Renew kits from Holley come complete with all of the necessary gaskets, O rings, pump diaphragm(s), needle and seat(s), power valve(s), detailed instructions, and