I had 850cc's all around. Now i have 850 primaries and 1200 secondaries. Is there a way i can adjust this with the power fc alone?

 

You can change the injector size and lag with a commander, but the injector overlap may also need to be adjusted with a datalogit to prevent the secondary injector stumble when they come online. Plus it's always a good idea to check the tune, I was always finding something to fine tune after a couple years of datalogit living.

 

Yes with the Commander you can change the secondaries from 850 to 1200. Have you read the manual? But there are a few other injector settings than only the DATALOGIT can adjust.

 

But by putting the secondaries to 1200's on the commander does that mean i can go WOT.

 

Theoretically, if you did the install correctly the fuel delivery should be similar to before and you are likely ok.