Hi, Just installed a boost gauge getting 10-12 in/hg seems pretty low, i have not gotten around to getting my car tuned yet but here's the relevant engine mods... any ideas? holds 12to 13lbs boost

Head Polished
Intake Port Match
Ferrea Valves +1.25mm Intake & Exhaust 3deg
Ferrea Racing Springs
Ferrea Titanium Retainers
RMW Street Cam
15% Alta Pully
Detroit Tuned Bypass Valve
JCW 380 cc injectors

JCW Spark Plugs
MSD Ignition
Nology Wires

JCW GP Intercooler
Mini Madness CAI w/Cowl Mod

Mini Madness Header v2
Invidia T1 Catback

JCW Stock Flash

 

Sounds normal with the amount of extreme head work you have. I wouldn't worry, especially with that healthy amount of boost.

 

Make sure your gauge is reading right. My '02 also reads 10-12 in Hg when idling, with a max in hard decel of ~19 in Hg. My scangauge says I idle around 8 (absolute) which is 14 in Hg. I've also seen 2.5 absolute which is over 25 in Hg when the gauge only reads 19. Boost reads correct (15psi at redline with 15% pulley).

 

I tried 2 different gauges same thing on both, idle is a bit rough.