Jon, again you provided the wealth of info. And yes, that's the intake I have. As you can see in the photo, it's mounted on a 235. So, I'm now assuming that both intakes have been modified. However, the carbs on the Edelbrock are 235 Rochesters, though I haven't removed them to see whether or not the flange has been modified.
Well, it's nice to somewhat have gotten to the bottom of this. Sort of ironic ending up with 2 modified 216 intakes, but I'm still a happy camper!
