1974 Duster build
Me and the wife took the duster on a 1200 mile Anniversary road trip of Utah, Colorado and Wyoming.
Getting at best 17.3 mpg, the worst was 15.5 mpg freeway.
First stop was at Louisville CO. To visit the In-laws.
Here she is at 12,000 ft above sea level, She was burning a little rich but no adjustments really needed. We only averaged 15.5 mpg on this leg.
Stopped by at the Greek Streak in Price UT to eat: (Good food, if you don't mind the wait)
Scenic Highway 191 From Castle Gate to Duchesne UT.