Hi Michael,
Not sure if this is what your looking for, but at
Batchrocket.eu (scroll down to the heading "Results") Peter van den Berg has used a Testo gas analyzer and posted some of his results to show what his batchrocket is capable of to most efficiently burn up the fuel that is being fed to it.
There are many more charts posted
online on this forum but also at
donkey32.proboards.com
Good luck with you conversation.