i have a 1997 tbird 4.6l. i was driving it home down the highway after i just got a new wheel bearing and hub put on it and i heard a loud noise. it sounded like my belt was flopping around under my hood at first but i knew what it was. my spark plug blew out. it was in the right side head if your sitting in the driver seat. second to closest one to you. so i believe thats the number 3 cylinder that the plug blew out of. it stripped the threads clean out of the head. like i said ..it has blown out one time before but its seated back down in there and i got it tight. i probably should have torqued it down...Soo..my question is. What should i do now??