I appreciate that thank you ghackett1. You’re right, that’s a very nice looking 68 you have there.
It’s a good thing that they do make a long reach gasket type plug with a 5/8” body that fixes this issue (link is to what I bought).
https://www.ngk.com/ngk-6364-bkr6es-nickel-spark-plug This plug is so much better, future tune-ups got much easier thanks to Mark’s advice.
The last pic is just fun to get some rating action started, thanks everyone for following!
