1986 Oldsmobile Other

Was running great, seemed to be running out of gas in driveway so I shut it down and got gas for it. It started and run great, parked for the night. Tried to start it next morning and no start. Son washed out air filter with water and didn't tell me. Likley a lot of water still in it and was sucked into motor on starting. Could this do damage? Replaced fuel pump, test proved it to be working good, doesn't start, and when it does it runs like it's out of gas, or badly flooded. Any ideas what top do next?
April 24, 2007.

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