2005 Chevrolet Silverado 2500HD - What now?

I have a 2005 Chevy Silverado 2500 I’m not used to feeling ejected so I pumped it like carburetor held it to the floor I like flooded it real bad I just change the oil I got gas in the oil flooded spark plugs we took all that out open the butterfly and a good half a gallon gas jumped out what else should I do before I put everything back together if you get it started I have new plug new oil

Other than making a rambling post without punctuation that is hard to understand ( I guess you meant to write -fuel injection ) you might explain how you got gas in the oil.

Generally that is limited to military pilots, even if it happens more than once in their career, they don’t get used to it.

I think you’re good with new oil and plugs.