1970 Duster AlterKtion, 4 Link, LS/T56/Turbo and Minitub

Well whats weird is this was the opposite side of the blown head gasket. But idk, I've never done that before to pistons haha. I'm hearing from people that it seems that too much timing will heat the cylinder temps so much and even though the rings were gapped for boost they still butted and broke the ring lands. But I'm not sure.