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I am at about 7k on some NGK coppers. Just swapped out my coil packs because the car has 170k, I never replaced them during the motor swap and couldn't find any receipts from the previous owner stating that it was ever done. Also, before I was having some nasty stuttering around 11 psi at higher RPMs under a load so figured why the hell not replace the packs.

I understand that the plugs are nearing their swap out time and I also know of one small boost leak (damn clutch booster line is hard as a rock) but my o2 voltages don't look drastic to me. What do you guys think? I am still terribly new at this manipulating my logs thing.