Why Carb and non OD a Gen 3?

But even with all that, they still have the advantages of good cylinder heads, higher compression, coil on plug and a crank position sensor instead of a distributor, plus a stiffer block.

To be clear, the above advantages are in comparison to the typical SB/BB. Certainly a motor could be built with most or all of those, but I was referring to what most people have in their cars or would be buying to swap in that isn't a crate motor of some type.