Its the cricket section.
I've never worked with those injectors.
You can compute a ballpark k-value from a known program using the same maf (and type of ECU, B13 or B14):
new k-value = (new injector size)/(old injector size) * (old k value)
So for example if you use the Mine's 550 Z32 maf bin on this page (they probably have the k value correct)-
http://www.plmsdevelopments.com/sr20_bins.shtml
And assume that your injectors at 4 bar flow (550 * 1.15) = 633
So-
new k value = (550/633)*40387
new k value = 35091
