For me it was a no-brainer to get an O2 sensor for 2 carburetors. Let alone the fact that I barely know what I'm doing it gives me at least an idea of where I have things set. It does get a little hard to read when you're in the excitement of your pass down the track, but I have looked at it a couple times. It's funny the thing is right there and completely in my line of sight and I miss looking at it almost every time even if I'd say I'm going to before I even leave the starting line. The likelihood of me being able to afford a recording device is not likely.
