Actually this boat had the worst I have seen, tortional flex. Once I repaird the bullshit bulkhead panel and turned it into a rib it fixed the tortional twisties. You could pick up the right rear 4" and it would flex 5"at the bulkhead. I have no idea what I am talking about, being I used to build real boat out of wood like the Ark that Noah had. By the way stringers tie the ribs together and plastc (glass) boats in general don't have them. Except for the top boat builders of the time.
Here are some pics of the intake install and spoon or bubble;