Solenoids have adjustable brackets to align coil tubes with valve shafts. Solenoid wires connect to the computing system. After “dedicated” performance the system switches to intermittent duty. Exhaust valves are opened so limited back pressure lets engines spin freely. Engines could activate a cylinder or a paired cylinder occasionally to keep the rpm above the engineered minimum for the speed of a vehicle. Actuation of solenoids is computer controlled. Similar valve movement timing of a “dedicated” operating engine is available using an adaptive electronic system the developer created.