Front Bearing?

Monty, I'm not that lazy. LOL. I'll be putting in a new one in about a half gal or less. Depends on how much fuel I get through it today. Might even have to send you the crank for some filling. We'll see. So far I'm liking the motor. Carb needles are still pretty close from Az. I went and hour leaner on top and bottom for my area. After the motor is broke in all the way, should I look at the head shims and remove one or leave it alone? Just asking.