The compressor flows 32lbs @ ~1.2bar
It's also flowing about 130,000rpm. The 260 thrust will eat itself alive running that fast for long periods of time.

It WILL make 300whp, but it'll be unsafe and a time bomb. Not to mention only 65% efficient.

I'm still not sure how an EGT can show you how to tune timing... An EGT is a nice reference tool combined with a wideband and a tuned motor. Other then that.. it's not much use from my expierence.