How will the car be driven? Street or drag? What kind of tq/hp numbers are you looking for? If for the street and moderate goals of 600whp then perfect. Small housing for quick spool and good tq down low, for a bit of sacrafice up top. All motors are different based on intakes, exhaust, cams and porting. And more importantly driving style.
Do you have a standalone ecu? If so, its simple to find out if the housing is a restriction. Wire in a second map sensor and log it. I've talked to pte before, and they don't want to see anymore than a 2-1 drive ratio. So when collector is twice what boost pressure is, then the housing is to small. I would change it out before then, but I think you get the idea. Housings aren't cheap, so work with what you have and see.
If you can't log it, that's fine, either use a junk boost guage with lots of hose on it with copper at the header, or use a map sensor and use a volt meter to watch the voltage output and compare that to the reference scale. Either way, you should weld a 1/8th pipe bung in the header. I do this for all mine and the info is great.
For reference, I'm about to start up my 2j and have a 6466 with the divided .84 housing.
This same housing on a worked over 2.5l with a 6262 only produced 34lbs drive pressure at 27lbs of boost pressure. So unless you looking to run max boost like 40psi on race gas and drag the car at 800whp, id say run it and feel it out.
