Lets make the best real world *MPG* THREAD EVER !!

My 1971 Dodge Demon. Late 70's 440, whiplash 440 cam, fenderwell headers, Weiand tunnel ram, twin 660 center squirters, 2500rpm stall 727 and 2.94 gears. 275 60R15 tires. Got 15mpg on the trip to Mopars in the Park. 600 mile round trip. Temps rose to over 100° and it dropped to 10mpg. There were multiple issues with the car by time I got home and all have been fixed. 3.91 gears for the summer local proved about 8mpg. 2.94s back in for MITP this June, new radiator, new exhaust, new superstock springs, new tunnel ram, etc. We will see.