Performance Ptgrammer... ?

One of your legs is a lot longer than they other. They lied to you.

Nope. There are plans, and even prototypes for engines with electronically controlled and hydraulically operated valves, and in theory you could set up a system with variable lift. But none in any production vehicle as there are all sorts of technology issues to solve still.

AND, if a manufacturer made such an engine, they would likely program it for best possible performance anyway.

Current technology is around Variable valve timing, and some engine do have variable lift. But these are basically "on off" features. They kick in when the computer thinks it will help, like at higher rpm and throttle. Re-progaming the ecu to activate this sooner has little effect apart from reduced fuel economy.

They exist but it's not that simple. Give it a few more years and if gasoline powered cars are still around it will be common place to have no cam or lifters, just solenoid operated valves that are infinitely adjustable for lift and duration and no traditional moving parts.

VALVE TRAINS ARE NOT SLOW ENOUGH FOR A COMPUTER TO CONTROL AND THE SPRINGS ARE TOO STRONG FOR A SOLENOID TO ACTUATE.

Hi yes this is true they tend to be expensive buy yes at the touch of a button