Fuel Mileage on your Hemi swap?

With the cost of gas nowadays, I was curious what kind of fuel mileage people are getting out of their hemi swapped A body cars? If you have any mpg data on your setup please share! (vehicle, 5.7, 6.1, 6.4, stock/modified, transmission, rear gear, etc)

See, I would like to have my Barracuda be my daily driver since I can literally drive year round here in AZ. I'm thinking a stock '09+ 5.7 with an OD trans should get me much better mileage than my current daily Dakota (16city/20hwy) and yet still be a blast to drive.
I can only speak of my ‘18-1500 Ram’s mileage which will get 20 @ 70 mph Hwy. Not to darn shabby for a heavy aero brick. However, if I travel at a much slower speed and consistently, I have gotten 28 mpg. 55 mph is a bit slow from what I’m used to & not really OK on the interstate. While it maybe legal, I think it dangerous. No one is excepting to come up on you doing 55.