200 mpg Pogue Carburetor

“In 1933 Charles Nelson Pogue made headlines when he drove a 1932 Ford V8, 200 miles on a gallon of gas during a demonstration conducted by The Ford Motor Company in Winnipeg, Manitoba using his super-carb system.”  

http://truedemocracyparty.net/2011/09/200-mpg-pogue-carburetor/

For Pogue—or any similar carburetor—to go 100 mpg on a gallon of fuel on a vehicle normally going 20 mpg, the air/fuel ratio would have to be in the neighborhood of 75 to 1 or better.  Charles Nelson Pogue was a machinist with no formal training in thermodynamics

Any second-year college chemistry student knows that.