The first example is using magnum heads. No matter how much you grind on them, they are still garbage. So there is that. He should have been using a W2 head, which is 1975 technology and then it would easily run with the Hemi.
I’m not going through the rest of them because it’s not worth my time. As a machinist, engine builder and tuner I’m no longer going to engage with guys who can’t even grind a valve, let alone spec an engine and make power. It’s just not worth it.
Long live the Hemi. The greatest power plant ever devised by mortal man.
It’s funny, these guys think it if‘s not some new junk it can’t drive anywhere and everywher. My personal garbage isn’t geared for freeway driving because it doesn’t need to be, but it will do it and run at 160 degrees on 100 plus degree days.
Unreal what people think and try to palm off on the internet as gospel. It gets old.