318 head gaskets and water jacket holes

I just installed a set of #302 heads on my stock 318 motor and am having a slight water leak coming out of the rear head bolt area. Not sure if I was supposed to rtv around the water jacket holes on the block before installing the head gasket and heads? When installing the heads I coated the head gaskets with the gold zink stuff and torqued the head bolts at 90ftlb. Was wondering if there's something Im missing? Thanks in advance.