I just changed my plugs.Three plugs were right at or a little below .52 and 1 was .46

. The other 2 were good at .54. The worst of it was that the #6 wire was crushed between the UIM and valve cover. I guess the previous owner was a little careless when he reinstalled it. The wire didn't split, but it had some gouges from the plastic sleeve. I taped it up with some f4 tape till I can get the new ones in.