High Volume Oil Pump VS Standard Oil Pump

If you run more than a half qt low on oil you will have a loss of oil pressure. I know this by first hand experience. My crate 360 I installed a HV pump on it and 5 qt pan. When it got about a half qt low on oil it would send oil pressure to 0 under hard acceleration btw shifting gears. Would come back up when I lightened up on accelerator though. To remedy this I do run about an extra 1/2 qt. IMO just stick with factory oil pump.