Big block oiling mods
Following along, my block had been drilled and tapped for 1/2 inch pick up and the other stuff required to do the rest of the mod.
Sorry, I don't know where or what but....I run a single line so I don't even use the pickup on the block. It is plugged.
I will add that I used .060 restrictors to my rockers and it gets plenty of oil up top to the valve train