Small block mileage

dave ellis said
The 318 has never been known for good mileage. All else being the same what is the real difference between the mileage potential on the 318 and the 360?

First year of the 318 LA in production vehicles.
Looks pretty good to me.

and 1967 Results, obviously using 273 in the v-8 Barracuda and Darts

Just one example of fuel milage comparisons from back in the day.