New rocker adjuster screws

early adjusters were ok with 3 turns as the length of the ball stud below the adjuster threads was short
newer adjusters are longer so 3 1/2 is iffy
now if you are running a hyd cam and single springs you are most likely ok
big cam and springs no
perfect world is cup on the adjuster and ball and ball pushrods with oil through the pushrods
I even like oil through the pushrods with cup end pushrods and ball adjusters- they just oil the pushrod tips/ balls better
not talking about the rocker shafts here