I upgraded to the Andair fuel selector valve which seems far superior to the selector valve that comes with a kitl which is more fitting to an antique tractor,
This valve has three positions, left tank, right tank and off. The center buttom must be raised to swith to or from the off position.
I had to screw the fittings to the bottom, loctite and side punch the screw head to ensure it will never back out. I also installed nut plates in the predrilled and countersunk holes. These will be used for fastening it in place.
I countersunk the holes on the bezel and fastened the selector valve using some stainless steel 8-32 torx head screws.