I have a 2014 ZL1 and i created a "calculated AFR" math channel and histogram. I'd like someone who can compare it to a wide band to see if its close to being accurate. I cannot install a wide band at the moment, and the local tuner shop only works on Mustangs. So im looking for a way to see my AFR using the math and it seems to be pretty good, but I have no comparison. It even shows the lean area when applying full throttle like ive seen on wide bands. Any help would be greatly appreciated.