I knew exactly where my power band was on my old 350LC. It kicked in at 6000 rpm and faded at 8500 rpm. I did know you get a narrower one by adding some reeds or filing a port, skimming the head or replacing the pipes.
Now I know some of the biker heads on this forum know exactly what I mean. But I doubt if many others would. I suspect this may not have been a troll. When I started biking I was clueless and there was no internet around to look up back then. People do bandy around terminology without explanation. How many people in Aces High heard of vulching, spit dweebs, jabos, alt monkeys and the like before they came to Aces High.
I reckon he did think you could buy a powerband, which in a way you can just not in a box over the counter.
Now where did I leave my old red power band?