Are you referring to the angle? If so, motors are usually installed with a bit of down angle and right angle to, 1) prevent ballooning when throttle is applied, and 2) counter prop torque.
That being said, yours looks like it has quite a bit of side angle to it. And, the Bix has such a small prop that I haven't found prop torque to be a factor at all. I have the same plane under a different brand name, installed a much more powerful motor and did not put in any side thrust angle. I have no issues, whatsoever. Down thrust is still necessary, though.
It should fly just fine. I wouldn't worry about changing it, unless you notice that you have to dial in a lot of trim and it annoys you. This design is extremely forgiving. My guess is that you won't have any issues whatsoever.