wow ....that is great mileage....I am getting 16 MPG in a 68 dart with 225/833 OD and 2.76 open. with electronic ignition upgrade from a 75 dart sport.
I think the engine has never been apart but still does not use oil. I have been told that I might be a lead foot too.
But 16 is the absolute best I have recorded to date. :???: