hopefully an easy question for someone out there.

this is my first turbo(T3/T4) so i need a little advice.

i have a b16a, just about everything has been upgraded (fuel, spark, blah, blah). in other words its ready for a turbo. i'm pulling the tranny and head off for a little work and i figure this is a prime time to do something to the bottom end. however with all this talk running around about stroking, overboring, forged/ high compression pistons, stock compression vs. low copression. i'm comfused as to what i really NEED to do.

i'm not building an all out racing engine just something more.
i want to be able to run the engine on 91 oct. if i can't oh well.
what kind of compression should i have?
to get that compression is it a combination of both the turbo piston and head gasket?
is a brand new stock piston just as beneficial as an aluminum?


please straighten this confusion out
thanks