CarlsonMotorsports
Site Supporter
Could be, I just know that right now they are plentiful. Possibly Briggs has cornered the market on them, LOL I have no idea.your too late Rdub3 was the first, waiting on him now. but in all seriousness can you confirm? There are no x plugs in their latest racing plug catalog they offer 1039 1023 1024 (witch were all x plug numbers) but they are conventional spark plugs. the people on the phone at autolite say they are discontinued and the info Rbub3 doesn't disprove what i've been told.
After all the "drama" surrounding the changing of the spec plug for the 206 last time and the quality of the 3910X headed south, I'm not looking forward to another change anytime soon. I am still looking for 11s and 33s though.