Stir the pot. You hit it there buddy.

I think it clearly explains that the is a marginal PSI increase up to 14.7psi. .25psi .30psi whatever. Now that example of a 17hp increase was was an example for 200hp engine. On a 1000hp engine it would be around 85 hp increase from a .25psi gain. Obviously it doesn't take the cooler air into consideration because it'll be more yet. No BOOST yet. From what I read, you'll make BOOST after 230mph from ram air. 15.5psi, 15.7psi 16psi. In other words 1psi above atmospheric pressure increase per xxmph above 230. K? K.