Also check the gap on the plugs. If the car hadnt been romped in much prior to you doing the drifty shenanigans you may have opened up the gap on the plugs causing a spark blowout in boost. Could also be an over boost situation. All the sudden heat could have nuked a vacuum line to the wastegate. Ideally if you have a boost gauge in the car monitor the levels. If boost levels are stock or close to it throw some plugs in it and gap them down to .028-.030. Go from there
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