if you believe thats the case when was the last time you saw 300whp 300wtq on a dynojet make 290+ whp 290+ wtq on a mustang? I have never heard of it...of all the threads on evom, the hundreds of cars i have dynoed/witness dyno, even the Mighty Dave Buschur himself said its really only a tuning tool, its not for bragging rights. Have you ever noticed Buschur Racing doesnt put out thier Dyno numbers but AMS puts out thiers? Who was first into the 8's in an Evo and/or DSM? Buschur (and the Mustang Dyno). Im just saying you cant claim tech error if it isnt tech error. Today when i get to the shop ill get on the horn with mustang and see if they cant come take a look. Its almost dumbass proof too...they give a long, long ass list of cars to pull information from. so HP at 50mph, max wieght, etc. is all there. So im interested to know what proper numbers youre talking about and why you say there is so much assuming going on. PM me please.