Competed on it Saturday and the power comes in with a bang, going to try and soften the bottom end a bit.
Friend of mine did all the welding and fabrication, the exhaust was probably the biggest job. He builds trials cars and was british sidecar enduro champ a few years ago, so was full of good ideas.
The best idea was for the cylinder head mount, there's a cross member linking the frame rails and all the electrics are mounted on the top. Engine comes out again tomorrow, so will take some more pics then.