What should i do if fuel spills into my 99 honda accord v6 engine valves while removing fuel injectors?

I tried cranking the engine and it started up very rough. I'm not a mechanic but I think it does have something to do with the fuel from the injectors spilling in the engine valves.

It probably just fell on the valve covers. You can wait an hour and it will drip off and the rest evaporate. If you had the valve covers removed, it would have mixed with the oil and thinned it out so that the oil does not properly protect the engine. It will not cause the engine to run rough and if you change the oil soon, it won't cause any permanent engine damage. I'm not sure why you were rotating your fuel injectors. If you are not a mechanic, you should not be screwing with your fuel injectors I would say the problem is with the fuel injectors. Either you did not install them correctly or did not hook them up correctly.

Nothing. During the ancient days of carburetors, engines could get flooded from gasoline. Gasoline will not hurt it. Any gasoline will evaporate or be absorbed and burned out.

Now being an inept mechanic will do more damage.

Hi so as is the usual thing you have no idea so that is when it becomes obvious you should have gone to a dealer to deal with it or at least bought a haynes manual for your car.