Try this one. If it is still rich correct your VE Table values.
We took the stock ve tables and subtracted -50%. Is that not enough?
If I was you I would go back to a stock VE Table. Subtract 40, 30 and 20 percent from the 400, 800, and 1200 rpm rows only. Do this as a starting point. Then follow the auto VE tutorial and dial the VE from there.
What would a 408 tune do to a 347? Rich or lean wise. It is a similiar set up