I'm sure we all know about softwareBURPS.
I've had BIOS & CMOS change itself and that's not supposed to happen.
Run-away Toyota's come to mind.
Running under high voltage power-lines in foggy weather my GL1500 acts a bit differently, as doesmy one hair on my head.
If that happened I wouldn't want a valve touching a piston. (OUCH! the cost)
THAT would be fine system if there clearance.
I'll stick to "definitive maniacal(mechanical)connections".
Hummm, after thinking about that. (just for say)
What "IF" the valves were placed outside the combustion chamber and the mixture were 'drawn in' or 'pressured in'and works likea 2-stroke.
Or maybe themixture were injected.Maybe from multiple injectors for variable fuel blends and/or on the fly fuel blends forpower and/or fuel economy.
I can see a multitude ofadjustments in the system, a PLUS + cost.
But then it bea mechanics migraine nightmare. a MINUS + cost.
just my $0.0004