I need to weld an o2 bung on my SSIs for an EFI setup and I’m trying to determine the best location. I’ve searched and found the usual location to be in front of the valve cover to the left of the heater duct in my photo. However, I’m wondering if I can place it to the right of the duct before the flange for the muffler, as noted on my photo. Would that be too far downstream? Any thoughts?
