Tuned FC into close to stock?
 

Quick question. totally new to Engine management but if the Power FC is self learning/tuning.

And I buy an FC from a considerable modded fd and drop it into my mildly modded FC is that a no no.... or will the fc quickly realize and calibrate.

or how should i go about it?

my biggest concern is I'm on stock twins and the previous owner large single.

You will need a new map. You can probably start with the default map and be pretty close to what you need.

There is really no Self learning/tuning in terms of fueling and knock outside of a narrwband O2 sensor to help with idle and cruise AFR. - If you leave the previous users settings you will probably damage your engine

Hmm. how is it you would get the fc back to base map without hooking it up to your car?

you can hook it up to the car, turn the ignition on w/o starting the car, go to the "etc" screen, and select initialize. that will bring it back to base.