Read a bulletin years ago from NGK that said NOT to use the copper as it makes the plug hard to ground in the head and that Alum. anti-seize was better. I use motor oil myself....

Last edited by Thumperdart; 05/24/21 02:28 PM.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....