This is VERY interesting - AeroNut can you help with some other questions???
Edit: I found a place for the glo-head adapter -
http://prophub.tripod.com/
I was going to convert my Homelights to use a CH ignition - but this sounds more interesting and will save a lot of weight.
I have a Spitfire I was going to put a Magnum 120 in, but if I could get the weight of the 25cc Homelite down to 28 oz - that would be awesome and the fuel would be much less expensive.

I too have a Cub and I'd like to put the 18cc Featherlite in.
Edit: Thought of another question. Is there any storage problem with E-85; does it (what's the right word) deteriorate; if stored in a 2 gallon plastic container should it be used up within, say six months?
Second Edit: AeroNut - instead of this E85 fuel - can we mix Methanol with gasoline, nito and oil and make it work??
Would this mixture work?? (All measurments in fluid oz.) 128 oz = 1 gal
102 ounces of gasoline + 26 ounces of methanol (Approx 20%) + 2.5 ounces of amsoil (50:1) + 6.5 oz Nitro (5%).
I can get methanol locally for $2.50/gallon - closest place for E85 is Oklahoma City (4 hours away) -
Also - any issues with the carburator, other than boring out the venturi to about .400 ?
Edit 3: Apparently Nitro is going to be a little expensive to get - so before I spend a bunch of $ what do you think about mixing
gasoline with oil and then using a 30% nitro helicopter fuel instead of the methanol and nitro.
So I would have: 102 ounces of gasoline + 26 ounces of 30% nitro fuel + 2.5 ounces of amsoil.
If that mixture works out, then I can order 5 gallons of nitro over the internet. I think that will run about $175.00 or $35/gallon.
Thanks for the help. If this will work, I'm going to order two glo-plug adapters and get my engines converted.