Were you using the O'Donnel
r2r 30% sport fuel for cars? The car/heli centered place I buy some things from sells that and racing fuels. The have shown me their list and they have airplane fuels for sale, too. But none with the nitro % I want for 1/2A. If the 30% r2r works well for you I might want to buy from them next season.
I bought turbo plugs there made by O'Donnel to use with the Valentine turbo plug head I have. The hot plug for small car engines seems to work well with 25% Sig with some extra castor oil. They are also about $4 less than Rossi or OS turbo plugs.
ORIGINAL: Sandore
OK, OK, I give!
It was fresh O'Donnell (?) 30% fuel with some castor added, and a 6x3 prop.