Okay i need everyone's opinion, i know most people will say just "do a swap" but i'll explain my goal
Current: Stock K20A3
I would like to turbo my ep3 but try and keep the stock engine, im still undecided about doing a swap or not yet...and the stock motor is still very much alive and healthy so i would like to extract as much of it's life left as i can as carefully as i can while obtaining more power.

Question: If I add a new RBC, intake, headers, exhaust, etc and kpro it would i be able to hit 200 on the dyno? Also would it be possible to throw a rsx type s head on my stock k20a3 and would it help?
If i do decide to turbo my stock k20a3, which internals would i have have to upgrade or should i upgrade, probably im guessing...values, pistons and?

thank you much