440 build

1930 said
.021 thou. Can someone help me to figure out know what the compression would be running the engine as is. I know there are alot of compression calculators that help get out of doing a bunch of math but I dont feel confident that I can do this on my own and get it right.
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The guy that did my machine work on my 440/505, took a measurement off the crank centerline when he line honed it for the studs. He then took .003 of the decks, which he said is all it took to square them up. I came out w/ about .000- .003 of being flush.