hi i have a jdm b16a with a chipped p28, header and full catback, short air intake, str fuel rail, aem fuel pressure regulator, walbro fuel pump, jg victor x intake manifold and a str throttle body


my question is whats a good and safe psi to set it at right now its at 45 should i go higher because stock is 40 let me know please

 

You'll see much better gains if you rechip with Uberdata or another freeware and get it tuned by a professional (or learn how to yourself). Fuel pressure will be included in the price.