rocker arm oiling HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ok guys has anyone done the fulltime oiling rocker arm conversion on the LA blocks I'm in the mid stream of converting my 360 to fulltime oiling and I'm need to know what size hole I should use I'm putting a restrictor in the deck surface and I don't want to go to big I have an -4 crossover and .250 hole drill into the left oil passage so if any one has done the conversion please help I was thinking putting a 1/'8" hole in the set screw that I put into the deck let me know if I'm in the ball park and on top of that I'm using full roller rockers please help if you done conversion HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!