I am trying to find normal operations oil pressure for 2.2L 4CYL. I amd running about 20psi on stock gauge at about 50mph at around 1700 to 2000 rmps. I just replaced head and gaskets with water pump and tune up the whole nine yards. The thing I didnt do was replace bottom end of block basicly. I wil be giving truck to my daughter for birthday just trying to take care of any future problems. Any ideas or specs.