No. Not at the moment. I was trying to go down to the recommended 87 octane, as it -should- be able to handle it. This last tank must have been bad, though (got it from a different place, was in a rush). So, back to better gas.
I was thinking since it was so severe that it could have been another issue. But, I will get better gas and monitor for improvement. On Premium, it pinged far less. But, all things seem to be working. If it continues, I might take the intake apart. But as of now, my plans are changing to Motorcraft plugs. The guy who did my head gasket used simething else. That could be it, too. (I assumed he would use motorcraft)