Superformance gaskets

Okay got home today to find coolant on the top side of the valley which means the bolt of fitting. Check all the fittings all dry, removed the drivers rear Mani bolt and wet to the top, I originally did put some blue silicone rtv on the threads since the Ede's go into the water jackets on the outside holes. Would the white thread sealant paste not tape be better then silicone? Will go under and drain a little bit of oil make sure there's no coolant there after dinner.