the all controversial MPG arguement

My question is “why is a big block such a gas hog in some people’s head?” Honestly- it’s only slightly bigger than a 360ci block. Cubic inch is cubic inch. 360 vs 383?!? 23 cubes more. The cars are light - most are 3300lbs or less being unibody and if you stay off the throttle and run on primaries....

As for cars of today. My new trucks with aluminum utility bodies and 5.7 or 6.4 get the same mileage that my older (70’s) dodges got with only a 3speed auto and same gears and 360 engine... steel bodies back then. Same tools. 12mpg.

Now- why put questions out there just to start a controversial “war of words?” A12- got nothing better to do with your time?