400 chevy

Hey guys,
I have a novi2k w/ cog system and intercooler that im putting on a 400 small block
brodix 11x heads 280cfm @.600 intake-dart little m block-callies crank - jesel etc...
looking to run aroun 20 lbs boost
has anyone had a similar combo?what kind of hp can i expect
im new to these superchargers
any help would be greatly appreciated!
Thanks

400 cubes and 20#'s of boost.......I'd wager guess to that it'd be a S***Load of h/p :D

Anyway you look at it, it'll definetely be a beast.