S475 questions

I need to know if the larger 1.32 exh housing w/.96 turbine spool at higher rpm?

Does the 1.10 housing with the .83 turbine spool quicker than the .96 in a 1.32 housing??

I want to be in good boost at around 2500 no higher than 3000rpm since the 383 has around 6-6500rpm max!

Geeeez, this **** is confusing!!