Oil Pumps - a multitude of styles

I always ran high pressure, high volume oil pumps. I run solid cams and want to design to be able to run 7,000 rpm. I remember 10 psi per 1,000 rpm was a "rule of thumb" so 70 psi was the number I shot for. Standard factory oil pumps used to have a 45 psi relief spring, so that was not going to work for me. High volume was a safety factor for me, the extra volume if the pump wore and lost volume over time. Ran all kinds of stock pans from Early A to 71 340 with never a problem, street driven cars.