the final graphs i give in AFR as people relate easier for some reason (the offset is petrol on those graphs), the dynapack has the abilty to offset the afr output to suit E85, Petrol, LPG, Alcohol and diesel. If your worried about it just tune in Lambda, i dont know a dyno that cant be switched in a mouse click
if not drop past and i'd be happy to show you the differences live.