420a rebuild-can it handle high boost?

[laserboost]

Ok well I've been looking for a car mainly a GSX or AWD 97 and up but I found this 95 GS w/turbo kit. I wouldn't be interested at all usually because it has a 420a but since it's rebuilt would it be able to handle alot of boost? I know I'll be beating on the car sometimes so I want to know if I should just look for a real GST or GSX w/the 4g63. Here's the specs on the car....

Engine:
-block bored .20 over
-JE Pistons 8.6:1 compression
-Eagle H-beam rods
-head decked and ported/polished
-Crane 010 cams
-Crane lifters/rockers
-Crane performance valve springs
-Titanium PT retainers
-AF/X underdrive pulley
-powdercoated silver valve cover
-intake manifold ported/polished

Turbo Setup:
-missing link
-Walboro 255lph fuel pump
-Accel 30lb injectors
-HRC front mount intercooler
-HRC intercooler piping
-Apexi twin chamber bov
-digital a/f and egt gauges
-autometer ultra-lite boost, oil pressure, water temp
-t3/t4 turbo (super70 upgrade, 360 thrust bearing)
-fuel pressure gauge
-T3 complete oil line kit
-Turbonetics variable boost controller
-HKS style air filter
-Vortech Super FMU
-full 3 inch ATR catback exhaust
-Custom 3" downpipe
-Custom dumptube off wastegate

Drivetrain:
-Brand new Spec Stage 3 clutch
-Phantom grip limited slip differential
-custom short shifter

Exterior:
-17" Opal Konig Verdict rims
-also comes with stock GSX 16" swirly rims/tires
-shaved rear wing (needs finished)
-custom tinted taillights/reverse lights
-custom cleared/blacked headlights
-clear bumper lights

Interior:
-New Corbeau A4 racing seats
-Momo shift knob/shift boot
-Autometer Ultralite gauges (Oil pressure, Water Temp, Boost)
-LED Digital gauges from Dynotune (A/F ratio, EGT)
-OEM eclipse mats
-JVC El Kameleon Head unit
-pre-wired for amp/subs

Suspension:
-Sprint 2" lowering springs
-KYB AGX adjustable shocks in rear
-Tokico Illumina adjustable shocks in front
-camber kits all around

rebuild and turbo have 1,500 and the chassis has 144k.

 

[Boostd20psi]

also think about getting your crankshaft and bottom end bullit proof. Ge t your crank knife edged and you should be set. Im not a big fan of JE Pistons tho. Id probably go with something else. I forget who makes pistons for that motor. Also, ever thought about swapping an SRT-4 motor and tranny into that with all that $$$ you got? Stock SRT-4 bottom end can do 1300whp and there doing it NOW in NHRA...stock motor can do a little over 500whp...think about it...