how many degress is possible to move ignition to get better milage before damaging rods?`

3-4 degrees?

You can use the Bpx Pd160 Soi and Durations to tune your Pd 130 as the injectors are the same.

I would start by making an end of injection table from your SOI and duration maps and when low boost and low iq you can go to about 2 degrees after top dead centre. On higher boost and IQ I would try to make the EOI the same as factory but no more than EOI of 10 degrees otherwise you will get high EGT.

Also for economy just advance soi around the cruising speed and IQ injected :)