Location for oil holes on rocker arms?

I was going to suggest that you make that a timed hole so it only feeds when it opens but YR says its a grooved type bushing (2 instead of 1 full length) so that's out. I did a whole 273 set with spring, adjuster and spine oilers with matching timed ports on new shafts one night. Mocked them up, turned the motor until the rockers were at full stroke and marked all the hole locations on the shaft then drilled the shaft with a 1/16 bit. Still got the original shafts in case that doesnt work out.