I have a GSR block that im building to all motor.
I have completely stock bottom end , exept for Arias High comp pistons and Rods . HEAD is GSR ported and polished with new comp tech valves /dual valve springs. Cams are stock and so is the intake manifold. What changes would i need to get over 200whp N/A or is it possible with my current set up? Everything is new , new bearings aswell.

 

Light weight fly wheel, and poly engine mounts, or mount inserts will allow you to put more power to the wheels. Also consider a light weight crank pulley. Don't go cheap. I highly recommend exedy clutch, don't buy a bargain clutch. Other than that, you may consider throttle body, intake, injectors and fpr. However, without a tuned ecu, you won't gain anything at all. I personally have all stock internals on my integra, with forced air intake and tuned ecu. I gained 3 seconds on my 0-100!