I think your timing is TOO advanced. I dont have personal experience (until this weekend anyway) for 16vs, but The highest timing advance I have seen on them is 26. Try pulling your timing way back and see if it adds more fuel is VE analyze. Keep on pulling back until it takes it away in both directions.
EDIT: Just saw you are on carbs. Watch your wide band then and see if it leans or riches. If it leans out then you are doing good.