Ok, here is what I'm thinking. I am using 450cc DSM's and my SAFC. Now, I do not have my wideband built yet so I can't prove anything but I was thinking what affect the ecu will have on re-adjusting the fuel levels that I set with my SAFC. If I am tunning rich for FI the ecu should be trying to lean in out to stoich wouldn't it? Does anybody have any comments on this? What % can the ecu re-adjust? Should one reset there ecu every couple of days to reset the LTFT from getting too lean???