Been through this before 300-310 is stage 1 i couldnt care less what the odd dyno figure pumps out. It doesnt fall into line with power gained from modifications of restrictive parts such as the intake. Wheel horse power is more or less the same on stage 1 across the board but figures at the fly are all over the place.
You want to believe the 325hp from stage 1 then so be it but your dreaming if you think its realistic.
REVO on Dastek made 291 and 292 at Wheels is that about right?