Afr info?!?!?

[R5DANGTT]

First post!

Hi,
New to the R5 scene and have been hovering in the background. Have seen lots of people posting about afr and wot etc. Now please forgive me for possibly asking a stupid question but can some explain it all to me or a link with the info. I have tried the search but with no avail. I believe it some thing to do with air fuel ratio but I dont really know. Thanks again and im sure once it is explained i will understand.

Thanks in advance
Dan

[Jonny5]

https://www.rtoc.org/boards/showthread.php?t=4761