is there much diff in the gas milage of a carb and efi

 

i get 12-16 on the street 18-24 mix highway and street and 29-31 on straight highway and its a holley 600 vacuum secondaries

 

A properly setup carb'd application with good gearing is capable of achieving excellent mileage. It's easier to do with FI, but can be done with a carb. I get around 20-22 highway, but have no overdrive and do a lot of driving in the mountains(up and down hills). I'm starting to experiment with driving slower and easier to see how good I can get my mileage. So no more 80mph for me [>:]