440 Pushrod measurements

Where is the oil feed hole to the pushrod in that rocker?

Also using fractions and not threads how far down is the adjuster?

I’ll go look up the exact Chrysler measurement.
I’ll have to look when I get home. The oil feed is a good question. Rocker shaft for sure but then??? Maybe some one has better knowledge on this set up then me.

Link to the setup
Mancini Racing Aluminum Roller Rocker Arm Kit