Rocker arm angle

Bob, I don't know where you find all this information, but I do appreciate your knowledge in this area. I have been studying these heads and have arrived at the following conclusions:

1. By not having more of an angle on the rocker arm (shorter on the pushrod side), you risk having the edge of the slot on the bottom of the rocker arm hitting the rocker stud. I found that even under static conditions mine are very close to doing this.

2.However, when using a shorter pushrod, due to the short valve stems, I bottom out on the stud when trying to adjust the valve lash. Since I need the rocker rails, I can not use any valve lash caps to extend the valve length.

3. The roller rocker arms have more clearance both on the rails and the size of the slot. But now from the info you supplied, I find that it is more critical on the centering of the roller.

I will follow your suggested procedure tomorrow and see where I stand with some roller rockers.