Stop in for a cup of coffee

So I ran the poly for about 10-15 minutes today. Got everything up to temp and hit each cylinder with the IR thermometer. Passenger side is nearly 200 degrees hotter, so I got looking and feeling, the butterfly on the manifold is rusted and I can't move it, even with a pip wrench. Dropped the pipe and sure enough, the butterfly is nearly fully rusted closed. I'm gonna have to cut it out it appears.