What B engine cylinder is leanest?

[MidTexCuda]

Finishing my headers for my boosted 512 and will be running a two sensor wideband. What cylinders are typically the leanest or should i just stick one in each collector?

 

[mguner]

What intake manifold? On single plane manifolds the sequential firing of #6,#5 and #7 can deplete the cloud for #7 in some rpm ranges.

 

[80arrow]

Run one in each side and read your plugs. You can also weld a bung in each primary and move the O2 sensors around.

 

[MidTexCuda]

Ya that was kind of the response I was expecting. I knew my options just didn't know if there was a simple answer like "oh #5 and #6 are always the leanest"
The intake is a Indy single plane.