I had 128bhp at the wheels from my old Valver - it had the breathing mods (nowt special - just an open filter), some head work, cams, a zorst (including de-cat) and a bit of work on the fuelling and chip (not sure what, but it had a Facet valve).
I guess 128bhp ATW is about 155+bhp?? Sounds about right for an engine with head and cams, but I was told it made 170bhp at the fly when I bought the car. To be fair though, thats what the guy who BenR bought his car off said, and my old Valver was a smidgen faster.
It seems that there are either "good" or "bad" French hot hatches - like the freaks that are AaronCs 16V or Craggys Saxo VTS.
Dont want to harp on about F7R power, but if I had the dosh Id go straight for a 2.0 bottom end. Not much point going for a rebuild of the 1764cc when you can get more torque at 2000rpm less. Im not saying thats everyones cup of tea, but you cant argue with the VFM.