If you want tht most awesome falcon 40 on earth follow these directions to the letter -don't try anything else with this you have to do exactly as its described -then get a metal head at east coast hobby supply -if you don't want to do it there is a great xtreme motor at ushobby supply -when you install the super skids and heat sinks and fuses you'll have lift issues -do this...
http://www.stonehenge-capital.com/FALCON40_MODS.html