.030 is ok but if you are AR about it you can shim them to .015. That's what I do because I'm retarded like that. If you have to shim to .030 why not close it up a bit more.
agree w/ this ^^^^^^^^^^^^^^^^^^^
I don`t have stock rockers, and use .010-.012 feelers between each rocker arm, and leave them in while tightening the shaft bolts down. Keeps things more accurate for me.
