Id like to do what another member did here, but with some modifications. He took a prius engine and put it in another car and added manual control to the vvt to make it either a low or high compression engine. Id like to modify the engine and cam to make low mode the highest compression you can run moose piss discount gas on. Then the 2nd mode is a high compression that needs at least an e50 fuel mix and alters the injectors for increase flow as well as performance.
This way you can have like a real dual fuel engine or a weekend racer.