you dont need to lower the compression, just lower the boost level you are going to run remo and youl end up with the same result, unless you are meaning you are going to get a stronger head gasget also when you lower the compression.
with that compression u should still be able to run maby 6-8psi comfortably with the right computer and tune, and still make reasonable power (maby 250hp)

that is unless of course you choose to go the full internals route.
which you have to basically go stand alone ecu = lotsa coin $$$$ ching ching ching