350 build. Will this setup handle somewhere between to 650hp?
 

Hello. I'm halfway through getting parts for my build. Initially was aiming for 400hp then got a deal on a couple turbos. So far this is what I have and not sure if it will handle somewhere between 550hp and 650hp. as long as I don't go beyond 6000rpm. Ive read it will be fine. Car is a weekend cruiser. Will not see track just the occasional drag.
Scat cast steel crankshaft and pro stock I beam rods
je srp 2618 pistons with nitride rings
I called scat they just want to sell me a forged crankshaft and h beams rods not helpful since I already have the parts and bought them from summit so they won't take this and let me pay for difference. I been reading on a few threads similar builds. Boost will be around 8 10 lbs any suggestions would be appreciated. Thanks