How many miles per gallon with 389 4bb 1966 Pontic bonneville
2 Answers
10 to 12 MPG if the car is properly tuned.
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I recently drove my ‘66 Bonneville Convertible from Cleveland, OH to Jacksonville, FL and averaged 15 MPG. It has the standard 389 but I had switched the Carter 4Bbl out with another whose name escapes me at the moment