Got an 83 Ram Charger with a 440 today!

That bolt was indeed broken off and there were 2 gaskets underneath when I removed the plate and both were ate up bad! So I have two questions here;
1. How many gaskets should there be?
2. Whats the easiest way to remove that bolt?

Just bumping this along in case someone else has some ides on how to remove the broken bolt.