Timing chain guides?

I wish I could find the thread but it's been so long that it might be on Moparts or another forum. It basically described HOW to use one with a double roller. I think it described how to groove the plastic pre-installation so it wouldn't self-clearance and leave bits of plastic in your engine. Also told what size hole to drill in plate for oiling.

Am I remembering the wrong stuff or does someone have the info on thi?