Just did a rebuilt 283, first start, and had it up to about 2000 to bed the cam in, and noticed that the oil presure was at 60 PSI. I will stick another gauge on , although I was reading it on a new Smith's capillary type gauge which i would normally trust. I used a standard Mellings high volume pump, but I'm kinda stumped as to what is going on. I have always had these sit around 45 PSI. Any clues ?