Upgrade your manual brake car to a 8 in. Dual Diaphragm power booster and a 1 in. dual bowl master cylinder with our quick install kit. This kit allows you to upgrade your factory manual brake car to dual bowl power brakes in no time. In this kit you receive the brake lines necessary to route the provide valve to the factory lines. Additionally we include an adjustable combo valve block with a brake pressure switch to activate your tail lights. This adjustable valve allows you to fine tune the amount of pressure your rear brakes receive in order to prevent rear wheel lockup. A great kit with a great look and easy installation. . , Master Cylinder Included: Yes, Brake Booster Included: Yes, Brake Lines Included: Yes, Quantity: Kit, Notes: For non Y Block Cars only. Y Block cars use item number FC0032HK, Kit is designed to upgrade a manual brake car to power brakes.