all of us did start in the same area as you are right now. i will say this. even on a TINY TINY turbo, a GSR at 10lbs will run above 250 at the wheels.
If you want to stay n/a 225 at the wheels is not unheard of for h22s. Type S pistons, Stage 2 cams (crower), new springs, retainers, pnp and a valve job...youll be good to go. thatll give you around 200-210...225 will probably take a slight overbore an h23 crank and machined h23 rods (cause neither the h22 or h23 rods will fit the type s piston in their stock form).
If you want to stay n/a 225 at the wheels is not unheard of for h22s. Type S pistons, Stage 2 cams (crower), new springs, retainers, pnp and a valve job...youll be good to go. thatll give you around 200-210...225 will probably take a slight overbore an h23 crank and machined h23 rods (cause neither the h22 or h23 rods will fit the type s piston in their stock form).