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To improve gas mileage in a 1978 350 V8 El Camino, consider performing regular maintenance such as tuning the engine, replacing spark plugs, and ensuring the air filter is clean. Upgrading to a more efficient carburetor or installing a fuel injection system can also enhance fuel efficiency. Additionally, maintaining proper tire pressure and reducing excess weight in the vehicle can contribute to better gas mileage. Finally, adopting a smoother driving style by avoiding rapid acceleration and heavy braking will help maximize fuel economy.

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2mo ago

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probably a th350.


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You probably need to be a bit more specific. I've got a 1972 El Camino with a 350 engine in it. I get about 17 mpg now that I just put new spark plugs and wires in it.


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The gas mileage of a 1977 Chevy El Camino with a 350 motor typically ranges from 10 to 15 miles per gallon, depending on driving conditions and maintenance. Factors such as the vehicle's weight, engine condition, and tuning can also influence fuel efficiency. Overall, these classic vehicles are known for their power rather than fuel economy.


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