I've just done my first 1/12th body and the front mounting holes I had to make, I've stuffed up.....or have I? lol

The body looks straight from above but if looked at from underneath it is quite clearly not sitting square on the chassis. I'm only talking about like 1mm out (maybe even less but it is not "to the eye" straight anyway) but would this effect the handling of the car?

I've seen many post about the aerodynamics of RC car bodies being so important I wonder if I should bother trying to push it over to line it up better?

It's a Trinity speed 9 body.