A/F Readouts guages

[SNKBYT]

Is there a Air fuel read out guage that can be hooked in the rear o2 location that will provide a readout. I am looking for a way to test my a/f readings without logging. Looking for a quick test wiout going to the dyno.

 

[1TONY1]

Is there a Air fuel read out guage that can be hooked in the rear o2 location that will provide a readout. I am looking for a way to test my a/f readings without logging. Looking for a quick test wiout going to the dyno.

I'm not sure I understand the question.

You can remove a rear o2 and put a w/b sensor in that location....best w/o cats. Leave the stock o2 plugged up and tie wrap out of the way. If you go to that trouble, you should log...preferably with an rpm log too. Just looking is ok to be safe but tuning is best done after while reviewing readings along with rpm.