| Does a 0.5mm overbore really drop compression that much. By my math (using 83mm as the height of cylinder/stroke): 87.5mm - 499095.98 cubic mm 87mm - 493408.33 cubic mm translates to only a 1.1% increase in volume, dosen't *seem* like it should affect it very much. Maybe I'm not looking at it right tho.
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