i just installed that blow off and now im running about 15 1/2- 16 psi on stock turbo should i back it off or should i be ok

 

Should be fine though I'd worry more about the feul delivery than running the stock turbo too high and possibly even the cooling system.

 

Ya he's correct. I'd be concerned with fuel delivery right now. If you're noticing fuel cut, rich/lean conditions or CEL lights, I think it would be time to turn it down to 14lbs.

 

alright, right now its running better than ever, i havent noticed anyhting yet but if i do ill turn it down to 14, thanks a lot

 

I wouldn't stretch it like that. You MAY do more damage by running it as is. I'd tone down the fuel before you do damage to the engine even though it's running the best it ever has.

 

buy a 190lph for $90and you can run the stock turbo on 16lbs safely. And dont buy a 255lph pump either.
I dont know where you live but what octane gas do you have? 15.5lbs will be safe now if you have 93, but out in cali we only have 91 and that would be pushing it.

 

yeah i live in new jersey, the octane is 93

 

Well then you should be good as long as your injectors and fuel pump are powerful enough to keep up with the demand and the computer is set up to support the boost.

 

time to get a high fuel pressure regulator....

 

Yep I'd say so