Figured I'd do a 6k mile update.
The DOHC is still running like a monster. If you goose the throttle just right, the front end comes straight up. Looks like my valves need adjustment around 3k miles after the first 1k break in adjustment I did. I hammer the hell out of this when I ride it (which is not often cause I like being able to hear things) and haven't had a single issue other than needing to stiffen up my front end.
Completely happy with the build overall, stupid fun to ride, and gets you all the wrong kinds of attention when you have to go through the neighborhood.
I'm going to park it once this hawaii summer is over as I have a fresh set of panels and rotors I want to put on, change out my tired and cracked belly pan, do something with the handlebars (for the keen eyed, those are the stock bars off a sportster), and maybe send my corbin back to the factory for a restitch.
I know I mentioned I was going to post a dyno-chart of the bike as-is, and I think that's probably a really bad idea as it will give the totally wrong impression and set an unrealistic expectation of what you think you'd be buying. I wish I took the time to do a dyno of the engine as it was shipped from the factory, that would be a better baseline and a fair comparison to other BBK's available.
I do know that if you install it with a takegawa big throttle kit (28mm ports match perfectly), a hindle, and a good tune, you'll immediately shear the woodruff key when taking it to the dyno.
If you do all of the above AND put in a slipper clutch, you'll get just about 24ish HP and a 12k rev ceiling before power falls off.
I've spent a little bit more than is reasonable and done more than is sane to my build and I am completely and utterly satisfied with my final power numbers. There's still room to get more, and I know some guys who definitely ARE getting more from their DOHC than I am, but I made more than what I was hoping for and am satisfied with the results.