Just to be sure, you find TDC on the compression stroke. That is why the "cork" pops out. The other TDC is an exhaust stroke, no compression. I use a Kleenex stuffed in medium tight. There are other methods of observing valves if you want to take valve cover off.
My opinion on timing is that a timing light is sufficient.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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