well not a very good update, went out tonight and was really getting on it, doing a lot of wot runs, and blew the gasket, there was a full steady stream of air going into the overflow tank and I had coolant blown all over the place. So I will try round 2 with it, but this time I am going to do things alittle different. I think the gasket will hold fine running studs with it, but only running 120 ft-lbs on these bolts was not near enough, so I will have a new set of them coming, but this time Ill go right to 140-150 ft-lbs with them, instead of the 110 i went with at first, also trying to do a hot retorque on them I think I just stretched them all and ruined them. This is the first time I really pushed the truck hard since the retorque, and I think I might have made it worse. The way this gasket is designed, i can pull it out, clean up the coppper coat on it, and put in a set of new rings and try it again. I am going to try it one more time with this gasket and these head bolts, if it fails me again, then I will drop in 425's. I could throw them in right now and probably be ok, but I want to do some testing and see if my original plan will be good enough to hold. I have learned a few things not to do again, and that is the point of this gasket and setup is trial and error. I head back to work tomorrow for two weeks, so soon as I get home, I will be pulling the head, cleaning up the gasket and installing new rings and bolts, and torquing it down tight enough from the get go, this time.