Fuel Inject it. That way you can use lean cruise.


Another idea, turn it into a Aktinson cycle engine (not the diet craze). You do this my using a high mechanical compression ratio around 12 to 1 then have the intake valve held open until after BDC so some of the intake gases are bled off. This will result in higher mechanical efficiency, but low power. Aktinson cycle engine are very popular in hybrid applications.