Originally Posted by Stu @ M Developments
You would be better off mapping her to hold 13.4:1 at WOT tailing to a slightly richer 13.2:1 just towards the rev limiter pal.
Dont exceed 12.9:1 at any time or pockets of fuel may cause localised detonation.
I was first like WHAT!?
No idea for how long would the engine last. Depends on too many variables like back pressure, etc. I would map it to 11.5 or there abouts for that amount of boost. You might get a bit more power by mapping to ~12.0, but the exhaust gas temperature wil be noticeably higher.