COMP Cams Magnum Dbl Row Timing Set ForCOMP Cams Magnum Double Roller Timing Sets include induction hardened cast iron camshaft gears, billet steel crank sprockets and heavy duty, heat treated double roller timing chains. They feature 3 keyway crank sprockets for 4? incremental adjustability with a 4? maximum advance or retard. These sets are ideal for mild street performance applications. This Part Fits: Year Make Model Submodel 1985 1992 Ford Bronco Custom 1985 1992 Ford Bronco Eddie