if im getting a rev hard 2c turbo kit for a gsr with pistons rods and block sleeves running 10 psi daily and about 15 on the track will the t3/t4 hybrid turbo work well? will it take long to spool up? please comment on anything else?

 

A t3/t4 turbo works wonders on the streets @ 7-14psi. My t3/t4 spools up in no time! I'm going to miss my t3/t4. (Got a bigger turbo). To help the turbo spool up faster you may want to get a 3" exhaust as well as a 3" down pipe.
I do hope you have plans for a standalone already because if you don't then dont boost more then 8-9 psi period.