get a wideband, not narrow band disco light jobbie else its hardly worth bothering with

AEM, Zeitronix, VEMs to name but a few makes
 
Yes you can fit afr but like Bill said only worth it if wideband and that will involve getting a boss put into the dp for a wideband lambda probe.
 
if you just want it for the sake to have another gauge or to just fill a space ,seems like a fair bit of work like
 
if you just want it for the sake to have another gauge or to just fill a space ,seems like a fair bit of work like

only the OP can comment on why he wants one.

Main point being (if) he wants an A/F gauge, best not to waste time/money getting a narrow band one if A/F is something he wants to know accurately
 
i want a/f gauge and wideband.to be sure that the car runs okey and not lean or rise..hade a look at aem gauge with wideband.