What is the fuel economy of a 1977 cadillac deville?

Question

It has a V8 engine (425 cubic inches), a 3-speed manual transmission, and a 4-barrel Rochester carburetor.

Thanks!

Answer 1

About 22 miles per gallon.

Answer 2

Maybe 12mpg if you take it real easy, more like 10mpg if you floor it.

Answer 3

horrible cause all cadillacs re gas guzzlers and its on carb so thats worse.

Answer 4

Manual tranny??  Automatic only I think.

The EPA ratings are 15 mpg hwy / 10 mpg city but if it's not well tuned or driven hard you'd get less than that.

My Dad had an Olds Dynamic 88 ('66?) with the 425 Rocket in it - a great car.