Need Help on '04 5.4 custom tunes.

[cajunboy2208]

Originally Posted by Longshot270

You can run 93 and add about 2-3 degrees of timing to it. But start with 1.5 advancement. If you dont have trouble go to 2 then 2.5,2.75 but I would advise against going over 3. When you are adjusting the timing you will raise it and get a tiny bit more power, when you dont have any increase in power or the engine knocks then take it down a bit. You do not want to have too much timing advancement because that is really bad for the engine.

Funny, my custom 87 on 87 beats my canned 93 on 93.

Thanks for the info. Next fill up I will give it a try.
Well I ordered mine when they were rushing to catchup. So... eh