help to fine tune my TT chip

[sweetv6]

Hi

i am near to the end of stock turbo i am stuck at 12.15 @ 112 mph
1,72 in 60' i have a gn 87 t top full weight minus fibre glass front bumper.
On my direct scan i have 820 mv in first gear
790 in 2 and 760 in 3 and it pull very nice with 23 mph
from 1/8 to 1/4. about timming I have 23 / 22 in 3 gear
22 psi I have a rasor alky kit.

My question is do i add some timming ? or
leaning it down in firts and second gear ?

let me know what you thing guys

setup
Power Stroke intercooler
3 down pipe with delta gate 3-1/2 single shot exhaust
bowl port 8445 match with intake
1.60 harland sharp roller rocker
stock torque conv. locked

thanks

Claude