Reworking the 273 Adjustable Rockers

(1) FT head oiling with .080" orifice setscrews in the decks (not assembled so I can go up or down on them). (2) I will plug the current holes with shot. (3) How should I finish this out? drill the hole under the valve tip from .100 out to 1/8 and (4) what clocking do I drill it further into the shaft? Valve closed? Just this (1) hole on the valve tip side?
RR PS now to throw a "monkey" wrench into the works! (5)solid MP cam and hyd lifters which I took apart & added a spacer so the cup is higher and just under the snap ring so that I can use my current cup/ball pushrods! not sure if they are 273 ones or not but they are close enough to be dead on correct length for my mockup checks (6) (1) thread showing (I wanted a bit more) & the cup is a bit close to the rocker at full lift but does clear OK. everyone tells me it will grenade on test and tune night! (7)All I did was convert hyd lifters to soild so I could get the cup height I wanted so as to not have to purchase new pushrods. (7)I feel lucky

1 Do NOT restrict the oil going to the head.
2 if your shafts already have the 2 holes per rocker why do you want to plug them an drill more. You have plugged the leak on the rocker so oil is going to the pushrod now that was being lost. You plugged the hole on top and drilled the new oiling hole for the valve and rocker tip your good to go on the rocker arms.
3 .100 to .125 is a 25 percent increase in diameter isn't that a 100 percent increase in volume correct me someone if I'm wrong.
4 See answer 2
5 I don't think you want to do this. A solid lifter cam has different ramp speed an profile than a hydraulic one. Did you replace the wire clips with C clips? All it takes is a loose adjuster an a wire clip will leave the building.
6 1 thread is about perfect I thought maybe I'm wrong
7 Buy the new pushrods go with the solids

Jad PS hope your not using a stock oil pump pickup for the HV pump especially with the Guitar Jones mods.