A friend of mine put the engine bolts in the incorrect holes when mounting the engine in his 7. Caused misalignment of the motor with the cowl.
I am not quite at that stage myself yet but I have checked. I believe the 4 bolts that go through the Dynafocul mounts are 2 pairs of different lengths. Not much in it but I am told that if they're put in the wrong holes the motor can be canted up/down/sideways - depending which bolt is where........
RV8 QB - started June '09
First Flight - Apr 2018
Previous C172 Penn Yan 180hp (Sold)