I think its irelievant what Steves made, its proven that certain settings for road dont seem to allow boost to hold whilst on the rollers.
I am sure if Pat,Bob or scott had an hour with Steves or Nigels car on the rollers they could make the necessary changes to acheive good numbers.
One thing i do know steves car is proper quick on the road, very strong.

CJ its about time you took me out in yours, must be mad, going by how good steves feels.
I not been out in a scoob over 350bhp yet!