Z axis plunging too deep

I am having a strange problem. my Z axis goes in almost inch deep into the work piece. I tried using Z Probe, set the height manually , deleted the machine from easel and re crated it, re-uploaded the firmware. I do not understand. what I am missing.
Here are the current settings
Thanks in advance

Settings
$0=10
$1=255
$2=0
$3=3
$4=0
$5=0
$6=0
$10=115
$11=0.020
$12=0.002
$13=0
$20=0
$21=0
$22=1
$23=3
$24=25.000
$25=750.000
$26=250
$27=1.000
$30=1
$31=0
$32=0
$100=40.000
$101=40.000
$102=320.000
$110=8000.000
$111=8000.000
$112=500.000
$120=500.000
$121=500.000
$122=50.000
$130=750.000
$131=750.000
$132=100.000

This thread outlines the default settings from a few years back. Your $102 might be wrong.

Grbl default settings - X-Carve - Inventables Community Forum

I would get an accurate scale and determine how much the Z moves for an input jog of " your choice of measurement".

Then you can do the ratio to change it if need be.

How to change the GRBL settings on the V-Carve - Software - Inventables Community Forum

I will check this and report back. Thanks