Jerry,

I used 1" spacer (wood)...the manual sucks at mounting location -notice the differences between the pictures and the dimensions?

I had to move the engine DOWN an inch to clear the Bisson Muffler, now the cowl is tilted a bit.

Horizon mounted the engine directly to the spacer (I used the mounting plate (1/8"?)...didn't feel confortable not being able to get to the engine mounting bolts.

Jerry