Here is some flow numbers, for a ported, C0AE head. I don't know if they were the -D version.
Ford 428 C0AE Med Riser Flowtech - Steven Magnotti SF110 Iron N/A 2.09/1.65
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No Pipe N/A 61/44 111/86 156/132 196/158 206/175 211/178 215/202 218/204
They have decent Ex flow numbers but, not much on the In. The flow starts at .100 and ends at .600, in .100 increments.
I'll ask Steve about them, next time we talk.