get yourself up to AMD RDS like the others have suggested, they all make very, very good figures up there.
On ther other hand the vagcom will give you a more truthful indication and highlight any week points. REVO is vey good especially with the SPS. Find someone who can log and knows the way around the sps and you'll gain horses for sure.
220g/sec is very good for a stage 2 LCR. I haven't seen any stage 2 breaking into the 230 g/sec region to even indicate that their up in the reliable
290's yet.
So if we assume the AMD guys are arouind 285bhp (which is a very respectable figure) and you are around 270 bhp with a few sps tweaks i recon you could knock on the door of a true
280 bhp which will read about
290 at AMD.
One thing in AMD's favour though is if it is state of the art cooling in their cell, that may add a few ponies based on that, i'd like to run on there to see what they make.