I am about to by the turbo for my setup and need some advice on trim and A/R.
Currently I am stuck on an SC-61 with S housing (.82 A/R). Anyone have any advice before I order? Should I stay with the standard .63 A/R?

Setup:
Sleeved B18C
84mm Arias
Eagle rods
Supertech Valvetrain .05 over
P&P head
Tubular Mani

Goals: 500-600hp

Thanks.