do you want 150-200 MORE, or 150-200 total?
more is not happeneing... total, sure.
every motor responds differently to every thing you do to it. thats the factrors. there is no set in stone doing X yeilds Y, and its even more so varried when it comes to boost.
how much HP depends on the following:
-turbo size, trim, a/r, wheels, bearings, portings, etc
-turbo inducer, turbo exducer
-flow map per psi matched to motor
-intercooler efficiency rating
-boost pressure
-flow characteristics of the charger pipe, intake manifold, valve lift/duration, head cc of flow
-CC of the combustion chambers
-manifold design
-size of dump tube/exhaust
-proper fuel to mix with
-proper spark to ignite
and 10000s more little things
that said, 10 psi on a tdo___ anything is not going to be big numbers here... on a b-series, i think youre wasting your time. on a d-series, you might hit 200 whp with proper fuel.