I though about this after I posted. I was thinking big bore and short stroke to reduce piston acceleration and speed, but the large bore could also be a problem at high RPM on a wedge head, the time for the flame front to travel across the larger bore, could be an issue. Also, you would want to avoid domed pistons for same reason. You would want a shallow cylinder head with a central located spark plug to get high compression and a fast burn. Anyone make something like a GenIII hemi head for the big block?