Mine got about 1 mpg better than it had, in a wind at that....like 20 plus side-to head wind...I just did a 850 mile round trip this past weekend...1mpg better was the average, and as ya know a slant six needs all the help it can get power wise! (one half the trip was really windy)
And Still no TRUCK smiley.....
my
Bill


84 D150 440/727
79 /6 swb D150
1964 A100 window van. Just because it has spark plug tubes doesn't mean it's a Hemi.



If ya haven't been there, ya just wouldn't understand.