Yeah, should be able to do that. I have a track day this Thursday, so if nothing blows up, I'll be in.
Car was originally tuned at Unigroup (290 as well- their dynos are identical I've found from personal experience), however I use DVS Jez, and has been to him quite a bit. Stock S14 motor, incld headgasket. GTX3071R 0.82 housing, 6Boost, 44mm Tial. 289kw@18psi on 98.
Lets go and see what they do, if I make it through the gearbox!