[Snake2998]

That means 1 pound of air, at STP, will be equal to 13.1 cubic feet of air. Now to make 100 Hp the engine will need to process (consume) 131 cubic feet of air per minute. If we have a 600 Hp engine it wll need to consume 131 * 6 or 784 cubic feet of air every minute.

When you consume 784 lbs of air and you are fueling to an AFR of 14.7:1 for Plain Jane gasoline you will need a little over 53 lbs of gasoline per minute. At 6.5 lbs/gallon (in round numbers) that means a fuel delivery demand of a little over 8 gallons per minute! Changes in air density require modificatins to that fuel delivery in real time. This is where the EFI systems shine.

Your calcs are a bit out - using a BSFC 0.50 lbs/hr a 600hp motor will consume:
600 X 0.5 /6.25 = 48 Gals per hr - not 8 Gals per minute.

Otherwise I like your take on things.