Scott,
Since my intake is aluminum, putting a magnet anywhere and having it stay would be a job. Also, I have a single plane intake which has one huge hole under the carb and the Magnets I use, I just lay off to each side of the front or back when I am taking a bolt out. One of them even saved me from one of the tiny washers on the ignition from going down into the valve cover once as I dropped it while I had the
oil cap out and the magnet was about 6" from the opening and it grabbed the washed as it fell. I can guarantee you that if I have an opening anywhere, no matter how small and don't cover it I will manage to drop something that may bounce 10 times and roll a foot and then fall into the opening. Hence the trying to figure a way to prevent this and with the strength of these magnets and their small size, they work great for me.
Ron
