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Me too Roger. The best value I have seen for the money (under $1100 fully assembled, ready to bolt on) is the 23 degree Pro-Filer. I might choose 185cc intake runners for a 355 motor and 195cc...

Yeah, a fellow named Stan Weiss has spent more time doing that than anyone else I have found and has amassed a phenomenal amount of data.
Stan Weiss' - Cylinder Head Flow Data at 28 Inches of Water...

You left out a zero in the part number, should be 10088113, commonly known as 113 heads. Here's the skinny from Mortec....
10088113...88-up...350.......... L98 Aluminum, 58cc, angle plug, raised "D"...