AFR Gauges

Yeah, I have one in my '68 F250 (390 and an 1850 Holley), but I don't recall the brand. Pretty sure I bought it at Summit, and as a tuning aid (LH bank only) it allowed me to make the truck run great. Truck is in storage now, but I have to do some winterizing soon (this weekend, possibly), so I'll take a look and re-post/re-respond later.