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  1. 3.0 24v V6 flat-spotting/missing at 4250RPM

    Engines (TS, JTS, JTD & V6)
    Motor is in a 166 Super, on a T-Plate, with about 95k on it. When I picked up the car it had what I thought was a misfire at around 4250RPM. It has had fresh oil and filters. It has had fresh OEM-spec platinum plugs. The old plugs did not look well. The split intake pipe between the airflow...