hmmm....OK....will have a look at the plugs first, but the previous owner reckons they are iridiums and gapped to 0.7
If that doesn't help I'll clean the AFM coz it looks pretty dirty (what about removing the mesh?....you think that would help?)
THEN I will try lowering the boost a tad, and if all else fails have the SAFC retuned on a dyno by someone who knows what they are doing.
Thanks for the info Adrian