To eliminate the interference Ran's tech support advised moving the the engine mount forward about a 1/4". We could use either wide-area washers or spacers. We tried washers first but the welds on the top of the engine mounts didn't allow the washers to lay flat. Brenden the fabricated spacers. The diameter for the top mounts was perfect for the welds. The bottom mounts the diameter of the spacers was too narrow. In a tech support call to Rans, they agreed to ship 2 more spacers with the same part number as the original one and we will double them up. I ordered 4 new bolts to mount both mounts to the firewall that are each 1/4" longer from Aircraft Spruce.