I need an opinion or example if I can get it.

We have a 2005 Silverado Z71 RCSB Radix Blown L33 5.3 tuned to 12.5 WOT. We are getting some flack on it supposedly being too lean.

The only mods are the blower,Corsa Catback, and a CAI.

It has 42# injectors and a 8.1 marine fuel pump. 5.4 pulley.

At WOT:
Boost is "6.9-7" psi.
Spark is "18.3".
Knock retard shows "0" at all times.

Pics of factory iridium plugs @45k miles. Three back to back WOT runs were made and gently driven 1/4 mile to the garage to remove them.

Some fear it's too lean and bound for injury. Your opinions please.