Re: 79 CB750K RCB Clone-ish GOT MY RCB FAIRING!!!
So after looking at the pics of your bike vs. that amazing red one I think it's a combination of both move and trim. The fairing on the red bike is similar but different enough to make some compromises unavoidable. The face of the fairing is farther forward on the red bike by what looks like (Calibrated Eyeball Mk.3) a good FEW inches, but it's also subtly different in basic shape and form. I imagine it was laid up by some other shop? Who knows.....
1) Note the ends of the windshield portion vs. the ends of the bottom part that parallels the head. The 'wings' under the windshield are significantly shorter on the red bike while the bottom part that swing back over the engine is longer by a fair margin. It looks like perhaps you tried to line it up with the head as the red bike is and in this case I think that's a mistake.
2) Your mockup has the fairing a good inch higher than the red one as well if you go by the edge that's parallel to the head. Again, being almost assuredly laid up by a different joint this may be a matter of the overall shape.
3) Your clip-ons aren't really setup all that well. I have no doubt that sitting on it in the garage and going VROOM VROOM (I would!) feels great but having your wrists splayed out will be rough after a few miles of riding this brute, especially if you plan to actually hit some twisties on it (I would!). Obviously you'd need to rework the tank to clear but I think your talent has shown itself up to the task an that and a minor position adjustment will likely make cutting up the fairing unnecessary. I do kinda like the bolt on flairs and you could still incorporate them for effect.
Just a thought my friend, you're 80% there...might as well go all the way no?