I know guys running 20psi. Any answer you get here won't be worth a darn though when you get to the tuner. He'll tell you whats the limit for your car! But 16-17psi shouldn't be a problem. I'm running 13psi on 10.5:1 CR with TF heads on 93 Octane pump gas w/ 17' timing.
1965 AC Cobra 427SC Replica [Carb Edelbrock 306ci SBF, 1980lbs]
2001 Mustang GT - [645WHP, 652TQ][MMR900 + Trick Flow Heads + Intake][ON3 Turbo @ 14psi]
2007 Jeep Grand Cherokee HEMI, 2006 Infiniti G35, 2012 Honda CRV EXL [The Daily Drivers!]