Whats up?

I am in the process of building a b18b and had some questions.

First the setup.
Turbo XS Tubular Mani
Evo Big 16g
440 DSM Injectors
2.5 IC Piping
RFL BOV
Stock internal wastegate. (held 22lbs)

I want a mock setup to run this summer with around 300-320whp, before I leave for college it will be pulled and completely built in my dorm room. (sleeved, all the works)

I have low comp pistons and forged rods bored .20 over.

Will the stock head hold these power goals for this summer?

or should I go ahead and get valves, springs and retainers?

also....
OBD-0 I herd is pointless with boost, so should I definately go OBD-1 or would I be able to get by with a chipped obd0 ECU this summer?

 

Head will be fine as long as its in good working order

 

thank you.

it's my first time boosting a car.