How to get better gas mileage in classic car?

I'm 19 and have a 1965 ford fairlane 500 2 door. I'm using it as my daily driver/ project car. I love classic cars but with gas getting up to 4 buck a gallon you have to deep
Update: I want to keep driving it, because thats the fun of a classic, I don't

45 mph. Low and slow is the way to go.***:D

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