Nice! You did the one thing that the XR needs the most. It was strangled for air with the small intake that it had. That left about 10 hp on the table.
In a way I'm happy coz XR1200 was one of the machines H-D did it correctly right out of production line.
Too bad old folks didn't like the looks of it as it mostly resembled a sports bike but heck yeah, I love my XR and even MoCo CEO has one and swears by it
I've not done nearly as much to mine as you have to yours. I just sorted the suspension, a few bolt on bits and did a basic Stage 1.
Lose your sprocket cover and get a XRx adjustable rear shocks which will do a world of good.
I don't want a downtime so I'm thinking of buying cams alone and send it to red shift to grind and make one.
They are the only one in business for XR and they're the best in biz