6lb pump blowing out carb?

That's weird. It is a Holley 750, DP, I'm not sure why it would blow out twice like this. But rebuilding it and putting it back together seems like a waste of time until I know what is causing it.

The Holley 650 DP had been sitting dry for a long time, maybe 4-5 years, so I can see it leaking where the primary fuel inlet is and the needle and seat bolt. But this 750 has me stumped.

I do have rust in my fuel line, I got a clear glass fuel filter so I could see if anything is accumulating, nothing noticeable yet. Only has 12 miles on it though because it flooded again and died.
Double check the float levels. Double check the fuel filter. They can pass the finest of rust particles. Take it off and pour the fuel into a bowl to see how dirty it is. I would install a pressure regulator just in case.