Tony - I am new to the forum and wanted to check with you about using NGK ZFR5N spark plugs in my '70 Plymouth Duster - slant 6, 225. Others have said it is ok and to take off the metal washer. Do you know if these plugs are ok to use?
Hey Tony I got a surprise Christmas card from you today! Thanks so much! You did a very beautiful job on it! I'm not very good at sending Christmas cards to anybody,BUT you and your family have a Merry Christmas and a Happy New Year!