I'm glad to see your wanting to run a MSD 6 BTM, too. You won't need the water meth injection like the locked timing setup. And a set of forged pistons and a forged crank is also an excellent idea (the cast crank could stand it at this level but might require Mallory metal for balance with forgings). Some eBay special old school TRW/Sealed Power/Speed pro pistons may be like slinging boat anchors around off the crank, but I've seen TRW forgings live at 9.5:1 in a SBC 350 with 8 pounds if boost. They seen quite a bit of detonation during the learning curve on that engine and never had a problem.
