Ron G---thanks for the heads up on the push rods--- 2 of them were so bad they would not go in the rocker cups correctly---EVERY cyl. had an area that I was not comfortable with---so "off with his heads" and get out the die grinder.
I had a first I had purchased 3 long "head porting" I had used the cyl. and the tapered ones--I had never used the Bull Nose rounded ball- I fear this thing properly. I never turn it on with out knowing I have a good grip on it; it set up a hormonic whipping standing wave action so violent it almost came out of my upper hand by the switch, I was able to hold on but my finger was no longer on the switch. Needles to say I changed to the tapered on that I have hours with on the exhaust manifolds. , Andy , John and his friend John Powers all witnessed the almost accident.
Scared me good there is a reason I always unplug the power tools to work on them.