Eddy mechanical fuel pump

Do a volume test;
The scuttlebutt is the engine needs a half a pound per horsepower per hour. Therefore,
at 400hp, the requirement is; 200pounds per hour, is 33.33 gallons per hour, is .5555 gallon per minute, is 71 ounces per minute ........ is 17.78 ounces in 15 seconds....at full load full rpm.
>Your #1723 rated at 110gpg, and the volume test will tell the tale. The catalog says that pump is good to 550 hp, which maths out exactly to 1/2 pound per hp per hour.The 110rating would provide 58.7oz in 15 seconds, but I know not at what rpm. And this spec is about triple what a 400 hp engine needs.
>The engine don't care about fuel pressure. The carb either. It only cares that the bowls are filled to the design level, and stay there. When the pump is running at max capacity, free-flo, it will be at zero psi. The pressure when reading high, only tells you how LITTLE fuel may actually be flowing, because the pressure rises to the max when the floats shut off the leak. Some guys say the pressure should be 3.5 to 4 at WOT and charging, to overcome inertia in the line and guarantee fuel is actually flowing. IDK about that cuz I have no gauge. I find that gauges just cause my worry. The only gauge I keep an eye on is the Speed-O-meter.......oh, and the fuel-level gauge, cuz I'm not a fan of walking.
>The engine-mounted pump is a suction pump, and every bend and kink is a volume killer, and so is a 12 foot column of fuel in a half-inch line, when charging to the traps.. But the biggest restriction of all, is inside the sender if it is still the 5/16, with a miserably varnished up sock on the end. Or if the tank venting system has failed.Well; a loop of rubber hose from pump to supply line might become the biggest,lol, if it gets sucked flat.
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For reference;
My car has a 3/8 supply line from right into the 87E10 gasoline, to a Mopar P4007040 mechanical pump (rated at 80gph), into a Holley 750DP. I ran my supply line right to the pump, put a bubble-flare on it, and jumpered over it with EFI hose. I left the hard line some room for engine movement, but strapped the engine down fairly tight.
This car ran 93mph in the Eighth on that; @3457 pounds, @930 ft., which the Wallace calculator estimates is 433 hp, and predicts 115 in the quarter. She's running a 10.5PV, and I think 72/80 jets.
I used; 1 gUS is 128oz; is about 6 pounds.