I have a 04 AC 440 snopro 151 It has the low comp 02 AC heads for pump gas and I have the high comp heads also I put cooler under the tunnel Its in pretty good shape I haven't rode this yet I got it in May I don't know if I really want this sled so that's why I might trade if somebody wants to open to almost anything of equal value around $2500-$3000 grand