Oiling issues

cryplydog said
It appears to me that the oil holes are in line with the rocker shaft hold down bolt holes. If this is a big block, the oil supply holes are/would be back at about the 7:00 PM position from vertical to the hold down bolt holes

For some reason I had thought it was a SBM.
I believe you are correct for a BBM application.
Maybe some big block Guru's can chime in to verify.