no....
why not try injecting water and see what happens H2O N20 whats the difference twice the oxygen right. maybe you could get ahold of some ether lawn mower starting fluid and spray that. chances are your not going to stumble on something that will increase hp in here that a few people havent heard but.... but.... gasoline engines can run on natural gas......but the engine has to be primed on gas first to start. also kerosene can be put in a diesel engine as well.