Looking at it from the tail it is offset from centerline fuselage to the left, 1/8 inch, the firewall (ARF kit), is already canted, slanting left to right to counteract left hand turning tendencies. After thinking about it i think this will not have a notcieable effect on flying characteristics, i could be wrong, i was thinking of adding spacers where the engine is mounted to the mount to pull it back over on the centerline. Also off the subject, I have a .15 O.S. engine, i cannot find bushings to fit around the shaft to fit the prop and spinner, anybody know where to find bushings of this size, 5mm. Local hobby shop has nothing, without this i cannot install the spinner, i can install a master airscrew, it does not need any bushings. thanks in advance.