Hey bf I just have a little problem ever sense I put my new fmf fatty pipe on and threw a 270 main in it is always fouling plugs not every day but it will foul out really easy even when I keep it revved before jetting and the new pipe I never had a problem with fouling plugs it was nice and another thing is when I'm in gear I will pin it and it will sputter for a few seconds then it will be fine again I'm not to worried about the sputtering obv it must not be good but it doesn't bother me if someone could point me in the right direction it would be nice.... Maybe jetting ? I'm not really sure !