My car is booked in for a power run and AFR on sat, fancy a guess on power?

spec is:

850 T5 manual
19t compressor, straight outlet exhaust
De-cat
Custom cat back
generic remap @ 1.1 bar
white injectors
RamAir induction
2.5inch stainless rip
V power Nitro

I think that's it other than stage 0, I will be happy if it breaks 300 at the crank...