Yes I have, but it was back in 74. It was a 73 dart sport w/ 2bbl carb.
Gas was better than but the car would get 22 to 30 on regular, and 25
to 34 on hi-test. Also ran 17.2 qtr. at 88 mph. 904 trans. Correction 2.76 not 2.26 gears...
2bbl ball&ball carb. up jet 10%
fresh bottom end good valve job, cut .100" fromhead.
quick advance curve in dist. w/no vacuum advance. timing 38*
2.26 gears
should get 25 city 34 hwy.
also should drop 2 sec. in et.