Our best experimental mods all in one engine - what will happen?

Our best experimental mods all in one engine - what will happen?
Garage 54

These guys are always doing weird stuff, like putting wooden pistons in an engine. I have to give them credit for trying things. This one is a little more conventional, mostly just cleaning and rebuilding an engine. I'm not sure lightening the crank and flywheel really gained them anything, we aren't building a race car here, and I wonder what became of the crankshaft's balance. Whatever, it didn't seem to affect the engine that much. But the modifications to the camshaft (7:40 mark) is some real third world shit, like something you would see on MacGyver.

I can't listen to the audio, it's dubbed and it just grates. I turn off the audio and read the subtitles. There's a lot of filler, so I tend to skip ahead ten seconds at a time by using the right arrow key.