390 gas mileage

[chris401]

I installed a hei distributor in my 390 with new plugs and wires a couple of months ago. The first thing I noticed was my mileage went from 8 to 11. I was surprised but happy. This was driving in town. Now I am back down to 8-9. What is different. I can not get any better than 8-9 now no matter what I do. How was it up to 11 for a few tanks right after all the new stuff?

If all else checks out, check the tension on your parking brake cable. You could have a slight drag from a rusty cable. If both back seem the same look at the lever and primary cable.

[Pentroof]

I installed a hei distributor in my 390....

Someone mentioned it could be retarded. I agree. Putting an HEI distributor on a Ford is retarded.

[Katz427]

After reading some comments, I wonder if any one will believe my old 63 Ford 390 P code would net me 16- 17 mpg running the pike between Syracuse and Hartford, and Boston. That is with 3.50 gears and a 3 speed stick.  Gas was a whole lot better back in the late 60's, early 70's, before the gas crunch.

[chris401]

After reading some comments, I wonder if any one will believe my old 63 Ford 390 P code would net me 16- 17 mpg running the pike between Syracuse and Hartford, and Boston. That is with 3.50 gears and a 3 speed stick.  Gas was a whole lot better back in the late 60's, early 70's, before the gas crunch.

I believe it. Although HP cost fuel these old engines do not have to be undependable gas hogs to run a car up the road.