Ensure that the spark plugs are tight and that the connections of the wires are also tight. When pushing the wire onto the spark plug and the coil you should feel a light snap as they snap into place.
And did you route the wires exactly like the old ones were? Are you certain you have the correct wire going to the correct spark plug?
I seriously doubt that any damage was done by a little bit of tiny debris getting into the cylinders. It would get blown out in a matter of seconds of running.