Quiet vacuum pump for big cam motors with power brakes.

[HP_Cuda]

Interesting, didn't know Hydroboost can pump out up to 2600psi.

Good to know.

[chal340]

The Hydroboost unit loves pressure *(up tp 2600psi). If your running both power steering and brakes and a low pressure pump you will not have any advantage from a HB system. The maximum benefit from the unit would be running a pump rated for 1350psi. Any higher and you will blow your seals. The pressure drop from the prop valve to the rear brakes is significant. So if your running low a pressure pump you might as well stick with a vacuum booster. 

@61K T/A.
I read that maximum pressure for a 1.06 Federal pump was 950-1050.
How it's possible to increase this pressure, put a small pulley or change the pressure relief spring?