Jim at Croydon also said that with a few more kms on it( at the time only had 2000kms) I should expect 20-40kw more as he could lean on it harder eg more fuel, boost and more timing.
It made 357kw on 20psi and i can't locate the dyno sheet to proove it unfortunately and CRD no longer have the runs on record, the car is very responsive and very easy to drive, smooth and is not a 'pig' round town.