Quote:
shim up the shaft. that will move the scrub pattern more towards the center.
I don't agree with that. The rocker shaft bolt is not parallel with the intake valve, it is inclined towards it. The higher you move the rocker shaft, the closer the rocker and valve tip get, and the further out the scrub pattern will be, given you are going in the right direction to get the proper rocker arm to valve angle.
The first thing to do is to figure out at what angle the rocker is to the valve stem right now.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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