Bob, glad you are happy. On our trip sop far best has been 9.3 hand calc'd at 65MPH. That was crossing Nebraska. Into colo at 70 MPH we got 8.3 hand calc'd in Denver. As I said earlier we are pulling a Hyundai Elantra which is lighter than the jeep (est 1000lbs), heavier by about 1500 lbs for the bike and trailer.
The tune I find has made the engine more civilized as you said, down shifts not much more than 4000 rpm to maintain speed, hit 5K once or twice on long sustained increase pulls but never used tow/haul. Will find out end of week, plan to cross Wolf Creek going to Pagosa Springs. Did find yesterday at 7000 ft that the engine struggles to maintain 65. Now at 9000 miles on the engine and it is getting progressively better as we go. Started out at 5100 so use seems to be a factor to improve. Plan on when I get home to install Gibson free flow muffler, and see what they recommend for air intake. It is somewhat a cold air now as it has a small horn over the radiator.
