David Vizard bench flows a BBD 2bbl

YY1 said
OK, what was the result?

...and what model/application was it

I've heard there are different CFM ratings for different BBD models.

Even tho' they don't mic precisely at these dimensions, there are basically the 1.25"×2 273/'teener/3.9 units, & 1.5"×2 360/361/383 units.
I just rebuilt one of the larger units for for My Buddy's survivor '71 Satellite.