Cranked up the 327 small block today after rebuild. Reved engine up around 2000 or so I think. Don,t have a tack so just guessing at that. Could have been around 1500 or 2500. It,s the oil pressure that I,m worried about. The gage reads all the way up to the top. Is there a such thing as to much oil pressure? If so what would be some causes of that.