7/8" wilwood is the best on manual setup.

You can TRY a vacuum tank and or pump but with the new lower cost hydraboost units we have i would do that before the pump and tank.

Manual brakes have a longer pedal travel which some don't like....for what we sell 95% of guys are running power.

But by far the Wilwood is the best looking and performing master out....we sell a ton, espically the black.

Matt