HPZRT600 from 0 - 85 see ya right now 600 how many trails in woods can you do over 85 anyways, the girl on the D&D cover, I saw her smoke a Viper on grass with a fan cooled sled, and just like you said well tuned, if a well tuned fan can spank a viper then it should not take much to tweak a 440 liquid.