Flow rating on the Holley Weber is in fact 200 cfm if rated like a 4 barrell and 270 rated like a 2 barrell. That's according to Tom Langdon. The 330 figure came from god knows who or where.
The conversion sure does work good on my 250, I'll say that for sure!
Now about height; it is 9 1/2 inches from the tube part of the manifold to the top of my home made air filter. The filter is about 3 inches. I do not think there would be a problem doing this conversion to the Biscayne.
Bob
