The video shows a push rod that is really bent. I found mine by twirling the rods under tappet and you can easily see one that is even slightly bent.

After rebuilding the carb and replacing the fuel pump, intake/exhaust manifold gaskets, push rod and plugs it started right up and purrs like a kitten. I took it for a spin around the block and it was a blast. The brakes, steering and suspension need some work but not much. I can't wait to get it out on the road.