I know I am going to be called a liar. And I hate to open this potential can of worms, but my all-time best mileage in a sl/6 car was 29 mpg. This occurred about 10 years ago on a trip up I-5, between Seattle and Bellingham, in my '66 Dart convertible(top down). I don't know even know what axle ratio I have, but the car is stone stock, with (I believe) the original 225ci engine with around 295K miles. The engine appears to have little frictional losses, because you can grasp the crank pulley and twist it with one hand. It smokes a little when cold, but seals up pretty good when it warms up. I also believe it has 215R60X14 mounted on early SBP Ralleys.
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: Thanks.. It also may be that I am using
: 235/60/14 tires . I know my speedo is 5-10
: mph slow, so that would affect my mileage
: accumulation. As far as wind resistance,
: well... the 1980 Volare was not tested in a
: wind tunnel... The rear end gear is a 2.76.
: Again, I have not messed with the carb or
: timing. It runs & starts great, does not
: ping on el cheapo gas . It does run for 1 or
: 2 seconds after shutoff when hot.
fglmopar@aol.com