I'm going to be picking up a ported big valve G head to put on my 87 T-II block while I have everything apart and know that the G head is not cross drilled and my block, being an 87 T-II out of my Shelby-Z is. My question is, do I use the Mopar Performance headgasket for a cross drilled setup or for a non-cross drilled setup since the head will not be cross drilled and the block is?