General .21 engine question as well as one specific to Sportwerks .21 Pro engine
I got two questions:
1. How many head shims does the sportwerks .21 come with by default? On my it had two but I wanted to make sure thats correct.
2. Have you ever noticed what looked like like scratching on the top of the piston head (the part that is closest to the glow plug if my terminology is correct). It almost looks like light scratching from the glowplug itself.
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