Hi guys.
Well, I took all your advice a couple of months ago and my project is slowly coming together, after purchasing the 15'6, I had the deck lifted, stringers and bulkheads were in perfect condition, put extra buoyancy to conform to new regs when they are gazzeted, put live well, put power steering, and hung two 50's on the back, still got other bits and pieces to do but getting there slowly, time and money as usual.
Question, I took it to the dam to do first test, all worked superbly well except for one thing, I have a cavitation problem when I turn, she runs beautifully through to full speed at 6000 rpm so props are good. At half speed even, if I try turning, she cavitates, if I increase throttle on outside motor and decrease on inside motor it manages a lot better, similar to turning a cat. What could the possible problem be, I attach a pic of motors being installed, as you can see, trim plate is level with the bottom of the hull.
Many thanks once again for all the advice to this point.