okay here is my setup i'm hoping to get near 300
98 GS-R
turbo drag 3 spec r t3/t04e .57 trim compressor with .60 a/r, turbine is a .63 a/r
9-8-1 JE .20 over eagle rods GE block guard
build head valves,guides,retainers and springs(ferrea valves)
engine management
550 lucas injectors and s200 hondata with 3 bar map

going to boost at max 14 psi u guys think i'll be near 300 with this setup and how much u guys think i can boost.
JOHN AT secret servives is doing all the tuning

 

anyone

 

it think ull get more than 300 at 14 psi. like 350 maybe.

 

build head ..did you also mean worked valve seats & port?
I'll estimatewith mild port & 3 angle at 14psi:
330hp
235ft-lbs

 

NO port and polish just valve springs ECT...

 

I say your getting ahead of ourself your focusing so much on the head right now focus more on putting your $ better toward a good setup that compliments each other well. If u have the right setup i see you closer to 400 with 14 psi, look into getting the precision sc61 great street turbo if you want to make good power. There have been many success stories on this turbo.

Do a search and look more into these people's setup and it well help to better guide you. Hope this helps

 

https://honda-tech.com/zerothread?id=532800

here this should be a start

 

ive seen 311hp (stock 10.0) compression at 10.5 psi.. soo yeah i think you can hit that goal easily