I may have to try a different gauge to verify the pump pressure. As far as knowing if the engine was rebuilt, I have to go off the guys word, he was very forth coming with info on the car and did not appear shady the least bit. The motor is really solid with lots of power, doesn't burn oil or show any signs of wear. I hope it's as simple as the gauge.

If I do have to replace the pump it wont be a total loss since I'm planning to do a 200r4 tranny upgrade.