Kind of what the VVT (variable valve timing) system does. Company in Texas was working with a solenoid operated valve system many years ago, must not of worked out for them never heard more about it (this was in like 1977). Truly amazing to me what the computer in a car can do with the timing and fuel flow now on the EFI engines! I know in bracket racing with EFI and a good tuner on the laptop the cars can become so consistent it's almost scary!!!! I see why the Pro teams have a man on the computer in the trailer full time at events!!!!