Fuel demand

I ran a facet jiggler in my Honda 600...same one in my 2.0 Mazda......413 Motorhomes run this same fuel pump..4psi, 25GPH. Run it close to the tank so its pushing. Not 600HP race rated. 1.5psi at full flow, 4 at idle. How long does it take to fill a Holleys fuel bowls at 1.5 psi? faster than it can burn it? That would be a good engine masters episode, put a 440 on a dyno and run a Facet pump and watch the AFR's. Maybe 2 G's could be simulated by putting the fuel pump much lower than the carb so it has to push harder to fill the bowls.
"...Typically, at wide-open throttle (WOT) a gasoline engine will burn approximately .5 lb. of fuel per hour for every horsepower. So that means a 650 hp engine will burn 325 lbs. (54 gallons) of fuel every hour, or under a gallon a minute AT 650HP. .."