Posted on August 17, 2016 May 29, 2018Do I need to use the Ignition Timing Control if my system has it? No, this feature is optional. All systems can run with the TACH signal input in a “Fuel Only” mode. Post navigationPrevious post: What advantages does Ignition Timing Control have?Next post: Does the Ignition Timing Control learn what’s optimum for my engine? 2 comments on “Do I need to use the Ignition Timing Control if my system has it?” william andrews February 28, 2017 someone gave me a powerfire three wire distributor locked can i use it? Bryce - FiTech Tech Pro March 7, 2017 This distributor will NOT work with timing control.