The first photo below shows the engine block that came from my fuel injected '80. Other than the usual issues we all deal with my car had very few problems to speak of. Specifically, I had no known issues with oil and or lubrication.
The pump seen in this picture has a restriction plate (for lack of a better term) covering the base of the bump, allowing oil to enter through a half dollar sized hole.
The second photo shows the pump that came with my '79 donor engine. This pump does not have the "restriction plate" but instead has a screen covering the entire footprint of the pump.
Which setup is better for my car?
With cover plate

Without cover plate
