Cool beans!
I seriously hope you are going to use at least E85 or ethanol or methanol for fuel on this build.
Here are the reasons:
you need extra engine cooling,
you need fuel to help keep the mixture cool because you have no intercooler,
you need high octane for the boosted compression ratio,
you need high octane because you have no auto-retard for the ignition timing when it gets on the turbo. However, if you run a magneto with adjustable advance/retard, you could do it by hand with a handlebar mounted lever like they did in the old days.
Good luck!
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