facinating subject here. yes a lot of this material was gone over by Clarence Lee but it has been decades I believe since it was published(around 1974 i think) in a legnthy article explaining why nitro ads heat to the engine . likely one reason it inproves idle. just going from 10% to 5% in my sport motors i detected a drop in rpm & needed to readjust idle. also would not adjustments in compression ratio acomplish the same thing? adding gasoline to model fuel has been done before but with power loss i believe.