Turbo Too Big for SR20?

[Houmack]

I have a Built SR20DET (8.5:1 comp) with supporting mods. I previously ran a T3/T04E 60 trim and Dyno'd 377rwhp on stock SR Manifold that had a T3 flange on it. I have recently purchased my Peak Boost Manifold and sold my 60 trim to buy a 50 trim instead. Now I've come across an SPA 70-63 Turbo (Made in Brazil and supposed to be very well made). Please help me decide, with looking at the specs, if this would suit me well:

T3 FLANGEExternal wastegateCompressor inducer – 64.8mmCompressor exducer – 91.4mmCOMPRESSOR TRIM - 50Compressor housing A/R - .70Turbine inducer – 73.4Turbine exducer - 55.9TURBINE TRIM - 58Turbine housing A/R - .63

My goal is ~400rwhp on pump, so I'm looking for an efficient turbo. I would love to run the race gas at the track and maybe run about 450-475rwhp. According to the distributor of this turbo, they're a few guys are running this turbo on their KA's and going low 12's at only 10 psi (full 10 psi boost at around 2100 rpms)

Can someone help me decide if I should just stick to a T04E 50 trim or if this turbo would be alright too?

Thank you much in advance.

[ZL-Auto]

Garrett 3071R or 3076R !!!

[DrifterProdigy85]

3076R will do 400whp @ an easy 16psi. So you can imagine what youll get around 18-20psi on 93 octane.