The Saito FA 90T Flat Twin is designed for any .60 sized 2 stroke aircraft.It has twin carburetors and hemispherical heads. It has a max rpm of 10,000,idles at 2500rpm and is designed to operate at 9,000 rpm with a 15" X 4" propeller. It is recommended a castor oil based 15% nitro solution fuel used.
Any one wanting the original spec sheet and owners instruction sheet,provide me thier email address and i'll send.