Blacker

iTrader: (3)

I received the rocker's today and doing a test fit before the cam arrives. Well, with the wonderful perimeter heads, I have to do some grinding. The intake valve rocker's are the one that is hitting the perimeter bolt casting in the head. I have grinded down several of them and seems to good to me. I used a feeler gauge and I get 0.030" clearance betwen the rocker and the head. I that enough?