I need to verify the orientation of the banana oil slots, facing the valve or the pushrod, does it matter?

Thanks Bob

the oiling grooves go toward the head
I can't follow your description, it follows the description of this old thread <-Click
are you piecing together the heads?

I think all the 426 hemi rocker shafts, both intakes and exhaust , can only go on one way and still oil the rockers like they should
I think that if you get them reversed the oil holes, all of them will be exposed away from the rocker arms
Maybe not on some brands

Groove on the bottom