I didn't change the plugs at the end of the season......(lazy). So I am just getting things accumulated for summerizing the boat, and thought I would go ahead and purchase new plugs. I was just curious as to what you are using. I have an 86 Sunsport with the 351, let me know your thoughts and why. I know some use the extremely expensive plugs, and some use the standard plugs and feel they get the same results. If I'm not mistaking the plugs that are in mine currently are the standard no frills plugs and worked great last season. Thanks