5000 to 7800 rpm, 600 bhp peak power - yes it was low speed.

I did comment about the lack of det checking and I seem to remember he
said something like " I can tell when its detting as I know the dyno sound changes"

He may very well be right as he knows his own dyno best but it worried
the hell out of me as I was adjusting the ignition map from instructions
given by him.

I realise this may sound like a stirring post - it isnt. My point is I do think
experienced tuners may have some kind of "second sight" or intuition
when tuning.