Upgrade your manual brake car to a 7 inch power brake booster and a 1-1/16 in. dual bore master cylinder with our quick install kit. This brake booster kit allows you to upgrade your factory single bowl manual brake car to dual bowl power brakes in no time. In this brake booster kit you receive the brake lines necessary to route from the new master cylinder to your factory 3 port distribution block. Additionally we include an adjustable valve which will be installed to your rear brake line with the hardware supplied. This adjustable valve allows you to fine tune the amount of pressure your rear brakes receive in order to prevent rear wheel lockup. Included in this kit is a new 1-1/16" bore master cylinder equipped to work with front disc rear drum or 4 wheel disc brake applications. A great brake booster kit with a factory look and easy installation! Note: Kit will only fit vehicles with manual transmission using factory clutch linkage. For automatic transmission cars or manual transmission cars using aftermarket cable styl e clutch see FC0002HK.