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ok after it took it to my good buddy Rob at Lamar Walden Automotive here in atlanta, he changed the plugs to TRGs... i believe... i will get exact part name for ya... but my mutiple cylinder misfire and bank 2 code disappeared. as you know i was running the bp8efs.
he told me that if i ran that plug itd be for something b ig like a 300 shot. should be the end of my ruff idle and he also edited out all the egr crap and i will go get emmissions later today.
i trust him 100% he his dad and he have been doing this for over 40 years. but these plugs are what he runs is his f body with a 100 shot. said they are fine.
guys thanks for the help and i cant wait until i can finally enjoy the N0X
your friend
Sean