The "base"
There's lots of factors here that can swing this "dyno" pendulum.
-Cats vs Catless & PBD absolutely will not do a catless car I went back and forth on this with them (less backpressure / less peak boost / more power)
-RPM over stock limiter, you are essentially the end user.
-Leave it alone @7500 or go full party to 8500
These things alone on this setup can swing
100+whp
These whipple cars that are 100% open and free flowing will net more power than continuing to pulley down and add multiple pounds of boost.
A perfect example
-Kelly Aiken's car the orange 3.8 CFTP his car was big time lower on the dyno with every pulley (stock headers & cats) it's a bottleneck
Kelly's car:
-3.8 upper pulley on 93
820rwhp @8500
my car same pulley 2" headers and catless
915rwhp on 93 and my redline is lower @8000 that's a massive difference.
Then they step all the way down to a 3.25 pulley on E85 @8500 and 1039whp at 22lbs of boost.
Me I'm back here on the 3.8 upper pulley five pounds of boost less making literally the same power 1029whp @8000 cut off 500 rpm lower.
Free flowing / unrestricted is the answer not always adding all the boost.
Headers and catless the setup you're looking at should very easily surpass 1100rwhp.