T3 vs. Mitsu housing

[turbotalon1g]

Yes I understand that, I guess what I am trying to do here is gain more top end, but not so much lag that comes with it.
I can say that there are times when I miss the 61.
That is why I am going for this, its along the lines of a 50 trim, which I think I will be happy with on the scm61 I had 20psi by 4200rpm.
I guess I would like this a bit earlier maybe late 3000s (3500-3900).
The bolton housing on a HX35 has dyno'd 500whp on a few cars. (yes we all know dynos are diff, but I have a baseline of this setup and want to improve a bit)