I could figure out my own question but this would require me to remove my ODV (Oil Distribution Valve) plus purchase and replace 2 gaskets and pay shipping. It's cheaper to ask.
Please find the question mark in the attached picture. Where is the small hole going to in the block? Example, is it going directly to the oil passage or is it also shared with pipe connection going to the rocker arm assembly? Hopefully someone has a junk block that's easy to get to. Close-up (macro function) pictures would be fantastic. Thanks.
"Adding CFM to a truck will only help at engine speeds you don't want to use." "I found there was nothing to gain beyond 400 CFM."
