Do You Carry Spare Gasoline in the Trunk?

The time my spouse following me as mentioned above in post #1, I believe what happened was that the vacuum advance failed on the 318 (ignition point style distributor and four-barrel AFB carb) I was driving and knocked the hell out of the highway gas mileage. I should not have run out of gas that soon. So, unexpected things like that could leave one stranded, even after having doing the math between stations.

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