Do you mean FPS? If so, then it's rated at 595 FPS.
PSI: It depends on how many times you pump the forearm. But Crosman says to never pump it more than 10 times. The 760 is rated at 625 FPS with a BB and 600 FPS with a pellet.
PSI is a pressure measurement. FPS is a speed measurement. It's not possible to convert between the two without a great deal of additional information (it might, for example, be possible to convert a pressure measurement in the chamber of a gun to an expected muzzle velocity of the projectile, with sufficient additional information).
To answer this question you would have to go back to Crosman and ask them directly. See the link below.
Minimum 38 psi if for a SUV. We run 40 psi on an Audi Q7
65 psi
40 psi (275 kPa)
9 to 13 LBS ( PSI )
15 psi
then youre running about 8.5:1 compression
16 psi
350