Stalls and hard start

[superstroker99]

I got a 1997 F250 here randomly stalls hard to start back. I got a fuel pressure gauge on it right now. It bounces back and fourth from 30-55psi. I tap the throttle and the gauge starts bouncing from 0-70psi. Am I getting some other pressure in the fuel system causing to get air in the system. No fuel or anything else in the coolant. Any help would be great thanks.

 

[superstroker99]

Also have 2 codes for number 3 and 6 injector problems cant remember the numbee dont have the paper in front of me