How much PSI does the Boost fuel pump on the frame rail of B2's push

[1988broncoll]

I was wondering if anyone happens to know how much PSI the boost pumps on b2's push. I am talking about the pump thats on the frame rail

 

[AllanD]

that isn't a "Boost" pump that is the "pressure pump"

The in-tank pump is only a low pressure "lift" pump.

I don't know the pressure offhand, typically around 50psi

Why?