Thanks for all the ideas and advice everyone. I really appreciate it. Just thought I'd give an update - I just got a pertronix for it, and hope to put that in this weekend along with new distributor cap and rotor just for good measure. Also put on a fresh new air filter element. Carb seems to be adjusted well, and I haven't found any leaks along the line, which is good. I'm also going to pull the plugs and just make sure they look good, and gap them, and do the compression check while I'm at it.

I checked the tire pressure and made sure the brakes had proper adjustment too. I am really liking how accessible everything on this car is to work on! My daughter got her license last Tuesday, and has been putting more miles on it than I am now. Now I've decided it will get a dual master cylinder very soon too.

Thanks again, and of course let me know if you think of any other ideas for getting my gas mileage higher.