Need Help on '04 5.4 custom tunes.

[cajunboy2208]

Yea. Lovin the 93 octane. Set my gears correctly, tire size correctly, and advanced timing by 1.5 so far. And big time difference. Just did the 1/4 in 15.18 with a .76 reaction.
Might try to advance timing to at least 2.0, possibly 2.5 and try to get into the high 14s.
Defitanly should of done a 93 octane tune. Oh wells.
Next mod I get I will get 93 custom instead of the 87.

[Longshot270]

Be careful on that timing. Of all the changes you can make that is the one where you can have too much of a good thing. If you hear anything that doesn't sound right back off the timing. You will probably be hitting a peak soon though since you are making tweaks for 93 on an 87 tune.