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I have a 97 l67 with drilled 180 degree stat, wondering which plugs i should be running? I like the copper core autolites but wondering what everyone else likes.

after my stage one upgrades, CAI and U-bend delete which plugs?

and after stage two upgrades, cat delete, 1.9 ratio rockers and one step smaller S/C pulley, egr delete, and pcm tune, which plugs should i use?

also where can i find rockers for a decent price?
 

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I had trouble with a lot of KR with copper core Autolites. I use the double platinum Autolites in my grand prix 2000, and our 95 Transport 3800.

You may want to consider 1 heat range colder for the double platinum. The colder plug may help with avoiding knock retard.
 
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