93 lumina euro w/3.1

Can someone please tell me what the fuel pressure should be on my 3.1. When i checked it with just the key on it reads about 48psi and then when i start it up, it holds right about 40psi. Is this good or bad as far as the pressure goes. Thanks in advance!!!!

looks great

the pressure is fine it should be about 35 to 40 when running