lower than normal oil pressure?

["Scott Gardner" <gardner@lwcomm.com>]

Well, after much good and quick input from the list--(Thanks, Vince, 
Thanks Tyson.), I'm thinking that I may have had an oiling problem 
ever since the rebuild.  Seems 55 psi shouldn't be typical for the 
high-flow oil pump and uprated relief valve spring.
        What can cause lowered oil pressure in a fresh rebuild?  Excessive 
bearing clearances?  A blocked passage that survived the hot-tanking 
and the mechanic's inspection?  Bad karma?
Scott
Scott Gardner
gardner@lwcomm.com
www.lwcomm.com/~gardner