For jetting most stock and performance enginesLow-range kit contains one each of the following intermediate jets (.025, .0265, .028, .0295) and one each of the following main jets (.062, .064, .066, .068, .070, .072, .074)High-range kit contains one each of the following intermediate jets (.0295, .031, .032. .033) and one each of the following main jets (.072, .074, .076, .078, .080, .082, .084)Dealer jet kit contains three each of all intermediate jets (except 1005-0008 and 1005-0009) and five each of all main jets (except 1006-0233, 1006-0234, 1006-0235, 1006-0236, 1006-0237 and 1006-0238) plus a main jet toolReplacement jets also available separately