Originally Posted by ttocs
There is no one that I know that would say that having a car on the dyno where real-time data can be seen/read in order to make adjustments would be as good as a handheld tuner.
Kinda hoping this is tongue-in-cheek.
A hands on dyno tune is better than a hand held. The handheld email tunes are conservative as they have to make the tune for a sight unseen engine, therefore the tune is written on the safe side, so they dont get sued for blowin someones motor up.