I have an MC18 that I am about to finally have finished. For road use and the odd track day.
It runs on pump gas.

I set the squish at 0.8mm
Combustion volume was set at 12.8cc to the top of the spark plug hole.
Details here

I should be able to update my blog in a week or two, describing how it runs compared to a couple of other MC18's
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[color=#808080][size=9]Yes,.. I too know how to waste Time and Money,...