Im on the same page as you and jakedawg, I think the bowl is running out of fuel. I wil try this test tonight as I have not done this yet.
Along the same lines, can I test flow by pulling that same line and not plugging it? I would think I should see a pressure change on the output of fuel as I ramp up the rpm's. is my theory right here?
So I did this test, plugging the line to the fuel primer and capping the intake on the primmer, no change from before. I also ran the boat with the line to the primmer un-restricted and was able to see a very apparent flow difference as the RPM went up. This leads me to believe the fuel pump is working properly.
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