Some 360 magnum questions

good chance it's coming from the rear of the intake like mentioned above. With the aluminum intake, on the ends (china wall) just use a 3/8 bead of Permatex RTV MAX OIL Resistance Black Silicone. And but an extra bead in each of the corners. Give it a couple hours to settle up before starting. Then use the intake to head gaskets as you normally would, obviously. I also put a thin coat of rtv around the water jackets on each end of the heads, both sides of the gaskets