71 Duster 360 turbo build

Very nice, about 12-14psi the stock pistons will crack. Was gonna warn you on the headgasket issue at 8-10 but you beat me to it.. haha. Keep an eye on the AFRs only takes a small piece of trash in the jet to ruin you day!
I had seen several people blow the thin mr. gaskets right off the bat, but they did get me through the hot side build! 1008’s seem to hold up, but wondering when cometics become necessary. Are you saying stock LA pistons crack around 12-14 or Magnums; both?