Actually when using the 1 part 10% nitro / 10% oil glow fuel to the 2 parts Premium gasoline the oil content after mixing is only 3% which equate to about 32:1 which is just a little more than the standard 40:1 that most gassers run. If you are going to try this do not use regular unleaded as most people are having problems with seperation of the mix and gasoline does vary from station to station, i used Sunoco ultra 94 and had no problems with seperation. And yes that amount of glow fuel added to gasoline is enough to keep the plug lit but most people have the best sucess with the OS Type F four stroke plug.

Here the the test plane for my engine, it ran great on the ground but after 2 min in the air it kept deadsticking on me, dumb ***** me flipped the carb to make the throttle linkage easier but unknown to me at the time there is a small hole for the impulse line to run the fuel pump, that explains the deadsticks, i did some damage to the wing and gave the plane to a friend, he now has a Stihl 26cc GAS/GLOW engine on it and wow that's tons o power for a 6lb plane.

Funny thing was this plane is a .40 sized trainer, but it balanced perfectly with my 21cc on it, by the way my engine came in at 32oz with motor mount and the factory steel muffler.

WARNING: Beginners do not put this large of a motor on a trainer plane unless you really, really know what your doing ( Read as NOT A BEGINNER )