Stock Magnum EFI 1/4 Mile Times in an A body

Speaking of 5.9s and Durangos,What kind real-world fuel mileage do those brutes get? I really like the looks of the first-gens
My Durango is a 2wd and got between 17 - 18 mpg on a 40 mile round trip commute to work at 60 mph. My 3/4 ton Ram 2wd gets the exact same.