Final Engine Compression Ratio?

ok, some readings I feel better about using the feeler gauge, if readings are off it would only be in the hundred thousands.

flat @ top of piston - .029 above deck
dome .184 above deck
head - shallow side - .083 deep


Nice. Someone actually understood how Chrysler wanted that piston and head to work together.

In that case, you need to do the 1/2 inch down fill method to verify your CR.

If the engine is in the car that's kinda hard to do.

You can calculate your CR with the heads on if the engine is out of the car. You need to be at absolute TDC and you fill the chamber to the bottom of the spark plug hole doing your level best to keep air out chamber.

Then it's simple math from there. Or, you can do like I do and use a slide rule.