AFR ERRATIC. ANY THOUGHT?

I would understand if it was hunting. It is 'ALL' over the entire spectrum and will not settle at any rpm or temp. It is not just a 1.5-2 point swing. I do have the Bosch O2 sensor that came with the kit. Power and Ground were supplied direct from battery but do run through the same firewall pass through that the tach wire does from the distributor to the tach. I am thinking this may be giving me some EMR that is bleeding onto the AFR signal wire since it is reading Vdc.