G'Day ????,
There is a ton of reading ahead of you in this forum (and the engine conversions forum) and at my web site.
Sorry, you've heard wrong. However if your TS has an O2 sensor (and the correct "fuel quality plug") it runs in a closed loop mode which is basically self tuning.
There is a ton of reading ahead of you in this forum (and the engine conversions forum) and at my web site.