circle track 9-1 360. mag heads/LA block. the heads were left as is & pretty much the new addit'l holes were added in the block and gaskets to match the heads per Sanborns sticky. decks are flat/bolt threads look good/bolt threads lightly oiled/torqued in multiple steps to 100. rad blows like a geyser in minutes of startup. what did I do wrong! Here is a new gasket(s) ready to try again. I cut the new holes in the felpros with an end mill & the dark area around the hole perimeters is where I dremeled the fluff away that was kicked up on one side from the drilling. I have pics but they will not load, likely too big. I'm out of ideas.
