When I need this

[talon_boy69]

ITC...Ignition Timing Controller,when I need it??

[shabby]

Timing controller? Never heard of anyone using that.

[greenstreak]

The Apex'i ITC has been around for a while. You only need to add timing artificially if you are maxxing out your natural timing curve under a good tune. Adding timing while you are already hitting knock and timing retard can be detrimental to your motor.