HELP!!! COOLANT WATERFALL!!

Could be a hair line fracture in the intake? I've had bad luck with the plan stamped steel gaskets for the intake .they make the felpro permatex coated gasket but it only fits 340-360 because the ports are too big for 273-318 . I had to improvise: plan stamped steel gaskets I buy a large tub of permatex heavy duty black RTV sealent and the small tub of permatex sealent only for to seal against radiator fluid comes in a small gray tub at O'reallys. I clean gasket surfaces and apply a thin layer of RTV across the gasket surface one side except for around the coolent holes on the steel gasket then apply the coolent resistant sealent around the coolent hole on gasket on one side and leave it sit for a full day .Then flip it over and repeat process on other side till both gaskets and both sides are covered and fully dry! Then before I sit them on the gasket surface of the head I apply a thin layer of the same sealents on the gasket surfaces on the intake. I just got done with my 318 build and no leaks . I did follow the numbered bolt diagram for the intake but did them in stages till it equal the final torque spec number. I also made sure the holes on the gasket surfaces front and the back of the intake where the cork gaskets go : one that faces the bypass hose and the other next to the distributor was deep enough for the role pins that stick up out of the block to fully engaged when the intake sits completely down after being torqued down so far no leaks. If it's a hole you'll have to tap it with threads use some speaker and find a bolt to use to seal it off.