how different is the b16b map vs. what an obd2 JDM b18c (GSR) would look for, aside from vtec engagement? i mean timing and fueling overall, is it vastly different? details please!

stock vs. stock

 

for the record, the b16b maps are WAY off vs. what the jdm gsr needs. i went to evans with a b16b basemap and put down 23 less peak whp before being tuned on the power fc. that only tells half the story because the curve was garbage with the b16b maps too...