RE: mounting a 4 Strock.......
1) Fly tail draggers
2) Move the engine forward on the mount to clear the nose gear
3) Use a four stroke bell crank system for the throttle such as this one: [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXD939&P=7]linkage[/link]
4) It's a four STROKE, not strock--just pickin'
hope it helps