340 oil pump

I used to use HV pumps and stock pans all the time. I never ran one dry, even with high steady rpms, and darg racing them. But..time and experience...An old engine with some miles and iffy clearances, I'll use an HV straight away. My truck's 400 with 80K miles has one with a stock pan. As does my '70 with a factory original milage 70 shortblock in it. (trap rpms is 6400, runs 113 mph) Any rebuild I do now has proper clearances, and doesnt need or warrant a HV pump. It sucks a lot of power just to pump excessive amounts around, and trying to compress it generates heat. You can feel the drag when pre-oiling a new engine. So I use a std pump from Melling, with the high pressure releif spring. You need 10psi for each 1000 rpm. So if you're shifting at 6300, you need minimum 63psi to stay safe. The HP ones usually run at 70psi, but dont sap as much power or heat the oil up as much. That's how I do it..But like you said..everyone has an idea...