As it was a flow bench test, comparisons are relative only to heads tested on the same bench/same conditions.

Yes, it's a good reference. But you can't use it to compare to Edelbrock or Kauffman or other heads, nor will a particular set of the same heads test the same on another bench.

These comments are not meant to disparage Pontiac heads, I run stock heads on my cars, but instead to highlight that "your results may vary" depending on condition, modifications, bench used, setup and other factors not accounted for in the bench tests. Maybe better, maybe worse. But not likely exactly the same.