Hey neighbor!
I think two major factors you need to input into your math are:
1- Base the "more air forced in" ratios on mass(lbs/min) rather than volume(cfm) which in turn forces you to take into consideration:
1(a) - Temperature, the compressed air will be hotter than the 14.7psi "atmosphere" air.
2- Volumetric Efficiency of the intake/head/valve timing/exhaust "package." I believe the general idea of 1.77 x atmospheres = 1132 lbs of "boost" only works if the VE of the engine is right around 100%.
I bet someone like Tom Vaught has the awesome Excel spreadsheet or other software that will do just what you want to know...
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"Nothing Beats an Ol' Goat."
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