that is very thought out. after doubting all manufacturing with compression levels set too low, ports too small, heat rise too much, and on and on and on...
the babble stops after increasing everything. Strain the mechanicals is also equaling efficient.
I have yet to exceed compression to need avaition fuel extremes. Anyone can swap an oe gasket to copper for example, even tiny engines dramatically effected by this change, and stay at 87 octane.
and lastly, variable valves suck. solid states will win a looong time to come. Get it right the first time, this variable stuff does not neeed to happen.
you the throttle, the road. Oh my god. that got confusing...