Watching that video, there is a good chance you are running 180 out. I've seen a Dodge 440 Magnum run like that before when 180 out. Make sure you are on TDC for the POWER STROKE of cylinder #1 and not the exhaust stroke.
That said, looking down your carb it appears to be just dumping raw fuel. As bad as that is (washing down your cylinder walls and plugs), you should be able to rev it like a banshee if the timing is fixed.
That said, looking down your carb it appears to be just dumping raw fuel. As bad as that is (washing down your cylinder walls and plugs), you should be able to rev it like a banshee if the timing is fixed.