Finally getting some results but will probably need some expertise on how to calculate the offseet /delay .
My problem was a little bit self inflicted.
When i wired the antenna to the Raspberry Pi, i just picked some gpio pins that were somwhat close together, just to ease assdembly.
However i ended up using the ic2 pins, and even though i disabled i2c in raspi-config, there still seemed to be some signals coming out of them.
So i moved the 2 pins on the antenna board to other gpio pins, 17 and 27 which were still close to the ground pin i used, so easy enough to keep track of.
I don't know if i need to make adjustments or not, but there's what i'm seeing, any help would be appreciated.
[piclock]:</home/pi/> chronyc sources
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
#* PPS 9 4 377 22 +21ms[ +77ms] +/- 1815us
#? GPS 0 4 0 - +0ns[ +0ns] +/- 0ns
[piclock]:</home/pi/> chronyc sourcestats
Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
==============================================================================
PPS 6 3 77 +1999.734 5613.035 +1966us 36ms
GPS 0 0 0 +0.000 2000.000 +0ns 4000ms
[piclock]:</home/pi/>