The p30 program only pushes total timing of 26.75 deg with a revlimit of almost 8300 rpms & vtec activation of 5875 rpms.

I recommend a chipped ecu with better ignition timing & a vtec xover at 5600 rpms, revlimit where ever you wish i.e. 8900 rpms.

Concerning where a b16 stops making additional power you couldn't just assume every motor peaks at 7500 rpms. Every motor is different