No offense, but if you've been around as long as I have and know some of the people that I've run across then you would believe them.
Coming from and everyday Schmo I wouldn't believe those number but "stOOpid" and another guy by the name of "Mase" both have tuned some of the highest per psi honda's I've seen. I've seen dyno's of b18c's leaving the hands of them making 330+whp on about 10 - 12psi....sdunds crazy but when those cars run high 11's there is no more explanation required.......I'll try to find a few links for you to help you understand.

320whp on a b18c1 running a sc-61 and about 10psi is the norm these days.

if this is the same stOOpid he's based out of Texas, Mase is based out of florida but makes trips for tuning around the country.