Freeze plug problems

The LA engines suck when it comes to having enough head bolts! As soon as you start to increase static compression or dynamic compression (due to cam coming into its sweet spot), the head gaskets don't want to hold. My hot 340 in my candy red '72 Demon is fully studded and I use the Felpro blues and it still wants to push the gaskets out. Use studs on the heads because you can tighten the snot out of them without failing the treads in the block like the bolts will. Mine blew out the one behind the motor mount on the passenger side and boy was that a joy to get to. Cylinder pressure leaks past the gasket and pressurizes the water jackets enough to push out the freeze plugs. Now when I build a small block with some squeeze, I install brass plugs with JB Quik. I learned this from Bob Glidden when he raced the Arrow in Pro Stock. He also drilled holes in the plug bosses and drove brads into them on each side that overlapped the edge of the freese plug thereby retaining it. I hope this helps you my friend. PS, this phenomenon occurs without totally failing the gasket!! Be sure your heads are dead flat - there is not room to give on that.
Pat