Prop question Inline 165

[Liam]

so i ran a compression test
cyl 1-105
cyl2- 95
cyl3-95
cyl4-100
cyl5-100
cyl6-100

all a little low I would say but pretty equal.This was on a cold engine,i may retry it after running for a bit.

Tested spark all cylinders reading 12kv at the plug.
I also rechecked timing and found it 1.5 degrees retarded so I adjusted that,checked advance and that is functioning.