2.4L upper intake manifold

Ok so the manifold is obviously in 2 parts, I need to remove the upper half to remove the whole thing and the fuel rail. I have removed 5 bolts/nuts from it, and the damn thing will not budge am I missing something?
A site for Mitsubishi Mighty Max and Dodge Ram 50 Enthusiasts.
http://www.mightyram50.net/phpBB3/
http://www.mightyram50.net/phpBB3/viewtopic.php?f=120&t=1749