confused with hsf pcb

[rmn_eg9]

Hello
I am a little confused with pcb solderind pads to run x1.5 idc or maybe more (engine setup below)

picture taken from this forum but I havethis type of board with no marks like on this one


The second is- I am running 3 (1000cc) jets and user manual suggest to solder 1-2-3 pads to 2-3 is it corect because manual section has doubled chapter #6 but it is pionted on chapter7.
Setup is
nissan rb26 with 3.4 strocker kit
efr9174
2200 bosch injectors
at 1.2 bar I have 525 whp and only 48%idc on pump gas