GT-40 Crate engine + Boost???

Im looking at a GT-40 crate engine to replace my tired old engine with 150+ k miles. Im running high 11.9xs@113mph in the 1/4 with my stock longblock and 15 psi. Is anyone running a Vortech with a Gt-40 crate? I guess I can make more power at a much safer boost level with the newer engine. I want to replace my cheap parts with quality ones also I just wanted some input/ advice :

Old Engine Setup:------------------New Setup I want:
150k miles longb----------------Fresh (crate?) engine w/ H/C
Typhoon Intake Manifold------------Trick Flow or Holley Intake
24lb injectors w/ Cal'd FMU---------42lb Injectors and Custom Dyno Tune
C&L 73mm MAF---------------------Pro M 85mm MAF
Mac 70mm TB----------------------Accufab 70 or 75mm TB
Shorty Headers---------------------Longtubes
Cheap Homemade H-pipe -----------Shorty X-pipe
Flowmaster 2-chambers-------------1-chambers
Vortech SC-Trim @ 8-17psi---------Vortech SC-Trim @ 10 psi
11.9x@113mph---------------------Low 11/ High 10???

no bypass valve but i run an auto most people use 5-spds (my boost doesnt drop between gears at the track). i didn't see under 5-8psi from staging to the traps.

what about a DSS w/ AFR heads ?

ill prob just build my own looking at my options. you can get a lot of good parts for 3000(fms crate)-4500(dss crate)