Spark plug testing & checking Dwell on an HEI

This is a video that I have been wanting to do for a while. I wanted to show the difference between a stock spark plug versus a racing spark plug. I think some of you might be surprised at the amount of resistance a stock plug has. As a little bonus, I added a how-to on HEI dwell testing. Most people have no idea that an HEI even has dwell let alone how to test it.
In making this video, I tried looking up each spark plug to see what info I could find from the manufacturer. Even though I've tested plugs like this for many years, I wanted to see if I could find some extra info I could share and it ended up biting me in the rear. The NGK V Power info I read stated they have a resistor but apparently, not all of them do as you'll see in this video. After testing many V Power plugs over the years, I knew the ones I was using didn't have a resistor but I was misled by the info I found. Oh well, I left all my findings in the video and you'll see what I'm talking about, LOL. Anyway, I hope you enjoy the video.