Yes basically it should work out to around there. The thing is that stage 1 housings will not fit a stage 3 turbine but the a/r ratios of the same stage turbine are usually interchangeable as long as you stay in the same turbo type. Oh yeah, i do have a stage 3 .48 turbine housing fs if you want it, perfect condition... pm me if interested.

 

that turbo will work just fine, but a smaller AR would help spool time....