Speed 6351's comments about a taller tire come at a good time. I'm researching tires now for the old girl and I've been leaning towards a taller look, not knowing it would also help with the gas mileage. Thanks for the suggestion. Now to decide between radials and bias-ply.
I've also wondered if a different spark plug would help improve mileage. Would a hotter plug give a better burn and thus better gas mileage? I'll contact Champion or AC and ask their tech dept.
Thanks everyone!
Spot