The Brodak 40 is a great engine! It will easily pull a 50oz plane through the patten with a 4-2-4 break. 59'.015 lines, Powermaster GMA 10-22 fuel, must be filtered before you put it in the tank. APC 11.5x4 prop, 4.5oz tank, Sig or Thunder bolt idle bar plug, Stock NVA & Venturi with 1- or 2-pieces of pantyhose covering the Venturi. Make sure you have a later Brodak muffler that has at least a .360 exhaust opening. A Fox 40 downward style muffler works great on upright engine setup.
Al