Well I can offer some advise I did this swap in my 69' and when I wired it up I plugged the drivers side o2 sensor plugin onto the passenger side o2 sensor and didn't even know I swapped them around! Made it run like crap, miss firing under load and a flashing check engine light. You probably don't have this particular problem but just check your wiring. I'm sure your bosch o2's are fine. Scan the computer for codes and let us know what comes up.
