My boat has dual 4160's (450cfm)
The other day at the lake, the rear carb flooded out so I came home.
Fuel was pouring out of the front bowl vent tube as soon as the pump was on.
I have an electric pump from summit.
The front carb has no problem at all.
Changed the needle/seat today.
Float was fine. Not sunk or anything like that.
Set it the same as the other carb.
With the new needle/seat, it does the same thing.
Just pours all over the place like there is no needle/seat at all.
Not sure how this can happen...