Well spark plugs just dont look like a Pit bulls chew toy for any random reason. Theres nothing else to do. Damage has been done. Even if it runs its going to fail eventually. Dont get so butt hurt. Maybe we should just recommend he goes spend 500 dollars in diagnositics and waste countless hours to come up with the same conclusion.
With the cost being so low on used engines it would be piontless to try to repair. If I pulled a plug out of my car and it looked like that the engine would be pulled the next day. just my 2 cents
And if you read the first 5 posts it kinda kills your entire argument. Good day. im done arguing over something so stupid