Edelbrock Experts I need your thoughts

another option is to install a bung on the other bank and move the 02 sensor to check
it at some point.It's unlikely to vary much.
I think they read 5 gasses 400 times a second or something and and can be used to record,monitor or even flash a new curves in modern computer controlled vehicles.
..for our old school carburetors they will just monitor your air / fuel ratios