I finally got around to pulling off my head to change out the gasket, it was confirmed blown. What bothered me was the bottom of the intake manifold, under the valley pan gasket. It seem there is breakage of the block above the cam and especially toward the front, like big pieces missing and what not. I didnt see any debris, so it might be just years of use. Just wondering if anyone else has this same issue and is it somethin that is just waiting to blow up in my face? BTW it has about 120k. Pics to follow.