159 miles today
modified air box had no noticeable effect on running below ~5,000 feet elevation
however, at 6,000 to 8,500 feet, either it made a difference for maximum speed (65) pulling a 6+% grade and/or it improved with break-in
at 2/3 throttle, last run, it would not do much more than 55-57 in the same area
72 MPH comes reasonably quick
72 to 80+ is much slower in acceleration
Up to about 68 MPH is a comfortable cruise...mirrors are clear
106 miles back from Indian Springs was 75.8 MPG (rated 76).
Some portions of Cold Creek are more than 6% grade (ran about 55-60 at less than WOT).
Probably not much new to post after this.