Need to know how much power this set up could make

[coastalbob]

freshley built 420a with a 2.3l stroker kit.
has knife edged crank and
manley h-beam rods.
motor is completely balanced and blueprinted with minor head work.
comes with a sheet metal intake manifold but needs to be port matched to the throttle body (not installed, but included, also comes with a low impedence injector harness).
has a star log manifold number 52 out of 254 made and a t4/t3 .50 turbonetics turbo. Turbonetics Deltagate wastegate,
Vortec fuel pressure regulator,
manual boost controller,
hks ssqv and
polished intercooler piping and same side intercooler.
2 3/4 downpipe to a n1 exhaust.
Msd ignition coil.
450cc injectors
Car is tuned on 8lb of boost with a safc.
Has autometer A/F gauge and boost gauge.
Greddy turbo timer.
Has a fully built TRE trans and a centerforce clutch.
GS-X front brekes
walboro 255fp.
18" adr wheels
The exhaust is a 2 1/2 inch n1

[Dewayne Waldron]

Those 450cc injectors will be your limiting factor topping out at 250 hp.

[JEFFREYCASTGSX]

Seeing all mods that the car has, it MUST have a 4g63 and as far as I know it should make less power then stock.

[MrBoxx]

Sorry, we don't bench race here. Especially when dealing with motors that have been modified so extensively as yours is.

Dyno it and find out.