With the small volume of oil needed to lubricate the rockers, whatever oil gets past the bolts should be sufficient, particularly if you're using rocker shafts with the full pressure oiling. If you're concerned about getting a little more pressure to the rocker shafts and you've got the type of oil connector in the middle of the two shafts that has a drain tube, pinch it off almost all the way to raise the pressure in the shafts. You could also chuck the rocker stand bolts into a drill press and file a small relief in the bolt shank in line with the tube center bore to facilitate better oil flow.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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