OMG need help fast

Like mentioned before, check the exhaust rocker on number #2 cylinder to see if going up and down. I'm betting you have a flat exhaust cam lobe on #2 cylinder. If the exhaust lobe is flat the combustion from the cylinder has know were to go but up into the intake because the intake valve opens while the exhaust valve is supposed to be closing.

When you pull the wire you take away the fire part but the cylinder pressure is still making it's way into the intake but you don't notice it because the lack of combustion from the plug.

Chuck