My last data points, then I'll back away from the keyboard and let the discussion continue without me.

Avg of 4 intake port tests on PRH flow bench with 2.20" valve:
.100 - 75
.200 - 151
.300 - 220
.400 - 280
.500 - 326
.600 - 346
.700 - 355

294 cc; Min CSA 2.65; Avg CSA 2.76

This is a true standard port opening that requires no gasket trimming for proper port alignment.

EDIT (and THEN I'll go away): To anyone outside of the Mopar world, those specs would pass for a mediocre -- at best -- 15* SB Chevy head. I've joked around before that building a stock-stroke 440 is basically building a stroker small-block with a really sh!tty bob weight.