enjoy reading thes post from old planes and engines. have new cox .049 would like to know how to convert to low plug and how to put tank on it and simple safe plane to put it on with micro severos. thanks for aswers. due to lay-off had to miss small this year only 70 miles from me would like to start this engine on stand what prop and fuel will be needed hope to convert some OMEGA 15% to this engine with proper castrol oil from drg store. hobbyshop over 100 miles away. thanks