I ordered the "Full power needle kit" (PN: 16012-KPT-921). This needle is noticeably fatter that the stock needle. Can someone who has experimented with both translate clip settings between them? I'm at high altitude (7000-9000'), and my stock clip is at 4h position. Plug looks good to me. What is the full power needle designed to do, and what would an "equivalent" clip setting be? thanks.