Do cracks go through? Epoxy them from the bottom and rock on. There are bosses for oil baffles. Also make sure the lip doesnt hang up on the 3-5 and 4-6 intake runners. Must trim or run thick gaskets so they dont leak or worse crack when your trying to wrench them down to fix a leak. Looks like someone tried to run an oversized sheet metal screw into those bosses.
