ya I gorgot to mention that I did chnage the fuel filter and tranny fluid with synthetic 10 30. Also the plugs are gapped right but not sure the heat BKR6E-11is what I have. Now the flat spot is not all the time. But like say im winding it in second after turning a corner o somehitng sometimes it feels dead until 6 grand when yes the VTEC kicks in everytime just fine and I am using premium fuel