Should I just use the valley pan with no gaskets? Stock 906 heads, not cut. This FelPro valley pan came with FOUR gaskets. I know to put a little goop on the 4 corners of the pan and across the top and rear of the block, but what about around the intake ports on the head? I am considering just spraying copper permatex on both sides mating surfaces of the valley pan and place the intake on the engine. I was told to only use the gaskets between the pan and head. Thanks for your thoughts and experience fellas!