Stock fuel pump pushing 90 Psi

I tested my fuel pump today to see how high I could get the pressure. I have a adjustable pressure reg. and B&M gauge. It went all the way up to 90 psi. Is this normal? Or is this one a aftermarket pump?
I did this test cause Im going turbo, and no it did not run real good at that high of a PSI. But if it can go that high Im not going to need a aftermarket.

as you go higher and higher above normal pressure, you actually start to lose fuel. i mean the fuel pressure goes that high but the amount of fuel at that pressure is alot less so your car will start to run lean

got ya ok but that goes for a aftermarket fuel pump too then. Right?