I had this setup on my 540, it worked ok but Duane at HTP built me a new one that is allot better now using a solid brace off the head.
Here are some pics of the old turnbuckle setup
http://www.***boat.com/forums/attach...1&d=1174839780
http://www.***boat.com/forums/attach...1&d=1174839780
http://www.***boat.com/forums/attach...1&d=1174839780