---

If the bolts are using the top holes, the engine would be mounted as low as possible and need to go UP.

Please clarify.

Without knowing which propeller you are using, the standard recommendation for this hull is 2 or 3 holes up. This means the top set of bolts go into the third or fourth hole, counting down from the top

You may need to go higher, depending on which prop you are using.

Top set of holes

0 <---bolt here is "all the way down"
0 <--- 1 hole up
0 <--- 2 holes up
0 <--- 3 holes up