340 Stroker Build Need LOTS of Advice

Here is a picture from a compression calculator @rumble put on here for me. I looked on this forum and seen that the deck height is probably .018 so I added that in.
I looked on summit for the gasket bore diameter and chose the 4.080 because I didnt want overlap into the cylinder, at least that is what makes sense to me lol

The compression seems low to me for what I thought I want. Did I miss anything guys?

Thank you all

Compression 416.PNG