After having a visitor who wears purple gloves stop by today to inspect an issue, we got to this situation. Just watch. Proof you can run one without the top cover. Black hose is hooked to an electric lift pump to suck "return" fuel out of pump to keep the mess to a minimum.
https://youtu.be/VgqOTR8xXBI
https://youtu.be/VgqOTR8xXBI