gearing vs mpg

Hey Joe,
You can actually change that final gear ratio on there to a .68 (thats what mine is)...I figure in town i will be fine with the 1:1, its the highway im more concered about...at 65 mph i will be turning 2100rpm...how does the sound?

ok cool. didn't realize you could change it. what motor is this? a 360? my 360 with eddy heads didn't clean up till atlesat 2200. so at 2100 my car wouldn't have driven very well. i was running 3.91 gear and a 28" tire.