Need Help! Somethings not right

[eli t]

I have a 03 mustang gt 5speed
i just got it dyne tuned full bolt ons
walbro 255 and 39lb injectors
from 03/04 cobra with a vortech
t-trim race blower stock tubing
that comes with kit 3.60 pulley
made 9lbs of boost. It only made
340rwhp this doesnt seem right at
all any of you guys have ideas i cant
seem to find the problem?

 

[rjs281]

That does seem alittle low but it could be because the tune is on the safe side. There are alot of other factors that work towards your dyno that day.weather and such.

 

[DaBigBone]

Does seem low. I'm only making 8.5lbs on an S-Trim and I put down 387/387 on a Mustang Dyno.