RE: CMPro/Chief/GSP 72.5 Extra 300s Build thread
That's a nice mount...I'm pretty sure that would would work.. Just remember that the firewall doesn't have right thrust built into it. You have to side mount the engine and add 2 4-40 size washer on on the firewall (top 2) for downthrust and atleast 2 washers in front (left) and (right) for right thrust.