My Uncle Drag Races and he is also a modeler as well as a full scale pilot, he uses AVgas from our private airport for everything except for automobiles,,, The gas is Blue in tint, last year they sent three samples off to the FAA labs for testing, they came back as 105 octane, 105 octane and 103 octane, he has ran AVGAS in everything, and as he states the AVGAS gives NO more power to anything except for his Drag Car (Because of MSD electronic ignition, cams etc,etc,) but it burns so much CLEANER in everything,,, that is why he uses it,