My 400 sb oil pressure is running as high as 60 psi on the highway. Does this seem a little high to anyone? My gauge runs between 3/4 to 4/4 all the time. I have also noticed that my oil pan seems to be leaking a lot more now to. I was thinking high oil pressure might cause this. Where does your oil pressure usaully run? Thanks, Mike. 77'/87' 3/4 ton Burb, 400cu, sm465, np205, 14boltff, dana44, 4.10s, 35in BFG's.