Hi volume oil pump vs standard volume pump

nm9stheham said
I gotta say that the open area in the 'Zinc' brand pickup looks smaller than a Milodon. The 'typical' open %'s in perf screen are in the 25-40% range (that one sure does not look like 50%), and I'd expect that the effective flow are is gonna be reduced due to edge effects on the holes. At a SWAG of 25% flow area, the Zinc brand looks to be maybe 2x the outlet flow area....

Milodon 18314: Oil Pump Pickup Tube Small Block Chevy Street/Strip | JEGS

Sorry I still do not get the problem you guys have with the eBay pickup. You are focusing on the screen and the size of the holes and not on the diameter of the tubing.
Look at the rectangular size of the inlet and tell me that all those holes regardless of size does not at least equal the area of the pickup tube diameter. Every hole in that screen can suck oil at any location.
In my previous post I mentioned my milodon swinging pickup.
Regardless of the size of the holes in the screen, it has a smaller size square opening than the eBay one. By square opening I mean the size of the frame that the screen fits into.
To my eyes the total area of the rectangular opening easily offsets the size of the holes in the screen. I also have an older milodon swinging pickup that has a bigger rectangular opening than my newer one, but with a mesh screen. How much flow threw that when it gets partially plugged up. The perforated metal type will probably never plug up. I think the eBay pickup recommendation was offered as an alternative to a larger diameter tube without much hassle, not as a direct comparison to the milodon which would be pan specific.
IMHO.