One of the best upgrades you can perform is to add modern disc brakes with a dual master cylinder. The safety and drivability benefits will reward your efforts. This brake distribution block (proportioning valve) is needed to install the dual bowl master cylinder to this type of system. It provides an appropriate balance of fluid pressure for most applications and is very reliable. It even includes an electrical hookup for a brake light to warn you if there is trouble in your brake system.

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