Engine build on the brain

So if I'm bench racing this correct using my parts I could set the pistons down .020 in the hole with .054 head gasket a revised Isa of 68.5 and put me on the edge of pump gas
Am I on the right track?
Help me out;
why would you "set" the pistons down .020 and then top it with a fat .054 gasket. With flat tops and closed chamber heads, this gets you a Quench of .074 which is useless for it's intended purpose. Generally, no quench requires a drop in SCR of 1/2 point to stay out of detonation.