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Is it normal for plugs to foul more with new cylinders before they break in?

I'm installing my cylinders on the engine and the overhaul manual says to "Assemble piston on connecting rod with piston number, which is stamped on bottom of piston head, toward the front of the engine." I have 10:1 compression ratio LW11487 pistons from an HIO 360 D1A so they have the...

Is it possible to measure the health of a cam by measuring valve lift therefore measuring how much of the cam lobe is worn of any? Can a cam be replaced by itself if it is worn or pitted? By the way, I don't think I have any problems with mine but it's a conversation I was having with a...