Timbo, thanks for the input. The bike runs and handles great. Do you know if the bike has had many owners? It really seems like a well maintained garage princess. I'm a little different than most, don't like a really loud bike. I pulled the baffles on the Cobra 6 into 6's and wrapped them with Drag Specialties Muffler Packing which got the rumble down to a level that's much better for my wife and I. I probably had about 250 miles on it when I installed the packing. It seemed like the idle dropped about 50 rpms and got a touch rough, so I push the idle back up. It still runs great & has perfect plugs, but I think the mileage dropped a couple of MPG. I see the desmog was done and was wondering if the bike was rejetted for the 6 into 6. I know everyone rides differently, but with very little data it seemed like it could get 35 mpg before I packed the baffles but got consistently around 31 mpg after. I started riding it really slow and smooth recently so I can make my wife happy if we take a trip soon. It seems like I'll get around 33 mpg if I shift really early and use the torque down in the 2000 rpm range as apposed to the power above 2500 rpms. Once it's over 50 mph in 5th it's all over, could use a 6th. She definitely goes when you wind her up.
On another subject we live in North Texas about 40 miles from the Red River near Denton. I ride up near the Red River to the Texoma area regularly. The back roads are really nice and you hardly see a car. One of our favorite short trips is Medicine Park Ok. Wife and I love to hike in the Wildlife Preserve. We take back roads up - Saint Jo tx, Indian bridge, Ringling, Comanche, Medicine Park.
I believe the guy I got it from was the second owner. While he had it in a garage it sat according to him for a couple years due to his travel for work. It was garaged the entire time I had it.
I installed All Balls standard needles & jets in late 2020 to early 2021. It does have IS springs installed which seemed to let it rev quicker than my other Valk but other than that carbs are stock. When I got it, it had standard jets but 3 different size needles. The guy I bought from said someone had rebuilt the carbs before he let it sit.
The Cobra pipes on it are what came with it when I got it. While i don't like the sound or the drone on long trips my wife likes that other drivers are more aware of us due to the roar. If you keep your eyes open you could pickup some stock pipes on Ebay or maybe even here in classifieds.
As far as mpg it seems if you keep the rpm down say under 3k the better the mpg. One of the reasons I traded that in was due to a trip I took on my other Valk where I was getting 20-25 mpg when we were running pretty hard. But under normal riding conditions I'd say to expect high 20's to low 30's.
I'm familiar with Denton. In my younger years I raced go karts and Denton kart track was part of our regional race schedule. I held track record for my class (KT100 Heavy) for a brief period of time although never won a race.

I'm glad your enjoying it and hope you & your wife have many safe trouble free miles with it.