The Edelbrock part #15902 kit contains all the parts necessary to upgrade an Edelbrock supercharger Kit part #1590 to the #1591 599 horsepower level. Parts supplied include the Z06 fuel pump and a 3.5 supercharger drive pulley. Product Features:599 Maximum HorsepowerStage 2 - Street/Strip System System TypeIncludes All Necessary Installation ItemsFor Part #1574, 1590, 15936-Rib 3.50 in. Pulley
