[J.C.you]

you might think about just drilling the holes in the dividers and filling in with epoxy. if you are blending into the port some, holes drilled diagonally into the port wall will help anchor the epoxy also. use a rough carbide burr all around the area. i use lacquer thinner to clean all traces of fuel. Meaux uses splash zone, then a good quality auto body clear coat paint to seal the epoxy from fuel. use several coats of the clear coat and blend to the aluminum. a semi-flat surface is pretty much the norm and not a pointed divider.