I HAVE A POULAN PRO MODEL 112 15" MOTOR THAT IS WHAT IT SAYS ON THE COVER. CAN ANY BODY TELL ME ABOUT THIS ENGINE WHAT SIZE IT IS,WHAT KIND OF RPMS I CAN GET OUT OF IT, CAN I CONVERT IT OVER TO AIR PLANE ENGINE, AND CAN I GET A CONVERSION KIT FOR IT? ALL IMFORMATION AND HELP WILL BE APPRECIATED.