Start with removing the intake manifold. If it still not found you will have to drop the oil pan. If it made it's way to the bottom of the oil pan it would be harmless, but you will not know.
It would likely fall all the way to the bottom of the oil pan and remain there. It's too big to fit through the oil pump pickup, so there is no way it could cause a problem.
There is a tapped hole next to the distributor hole in the intake manifold.
The dristibutor
Replace to inlet washer this normally happens when the washer develops a hole
The Donut Hole was created in 1968.
The camshaft sensor is located in the distributor. I believe you have to replace the hole distributor.
As you face the engine the first spark plug wire on your left is connected tot he first cylinder. Trace it back to the distributor and you will have the proper hole. If you have no wires connected then it is usually positioned at about 1 oclock as you face the distributor. (assuming the distributor is properly positioned)
Maybe the coil pack don't know what hole you are talking about
It's a WASHER, possibly a torque washer.
There is a tapped hole on the rear rail near the distributor hole.
Drill a hole and then insulate the hole with a rubber washer so the cable doesn't chafe on the jagged hole.
the mass of a single washer is 25grams