I remember reading sometime back about someone doing a 500cfm center carb conversion on there 6BBL. I think it was a Ford 2BBL carb from a circle track engine using Chrysler 2300 shaft and linkage. The airhorn/choke tower was milled down and so was the carbs base where the air cleaner sits so the 6bbl base could be used.

I've been looking for it for sometime and I can't find it I guess my search kungfu is weak..