Engine Timing Tweaks

Discussion in 'Fox 5.0 Mustang Tech' started by tca7291, May 21, 2013.

  1. So as it boils down, I've been trying to find that "sweet spot" for my ignition timing. Right now I have it set at about 13-14* advanced base. I have been running strictly 93 octane fuel. My main question is does the ECM need to be reset between small 1-2* timing changes? I'm getting a little bit of hesitation at WOT for a split second, then it wakes up. I don't know if it would make a difference, but it is an almost stock '87 still with speed density. Thanks!