List your MPG on your transplant 5.7 or 6.1

List your MPG on your transplant 5.7 or 6.1

i agree not as good of numbers as i would think fro ma modern fuel injected motor,,,my dual quad 862 cfm each,,,super charged barracuda,,,391 gears 4 speed no over drive, 33 inch tall tires 2450 rpm if i remember correctly at 60 mph,,,got 10.1 on the high way,,,and after installing E3 spark plugs,,,went up to 13.1 mpg,,,,,not to mention the better throttle responce....