ok i have a 04 ford f150 with jlt intake, sct sf3 tuner, banks exhaust, i was wondering should i leave the tune as the preloaded 93 octane tune or should fine tune it and adjust stuff like wot, spark, etc.

 

You'll need a custom tune for the JLT.

 

It has the custom tune for the intake but what I'm getting at you can adjust like wot, shift points, spark etc

 

Who wrote the tune?

 

No. Ive tried it with 5 stars tunes just a small adjustment hear and there and the truck ran like junk.It was aready on the edge.

 

if it has a tune for the intake which usually leans out the motor that's all you need to mess with. Messing with WOT, shift points and spark is something you should leave to a tuner if you're not sure what you're doing not to mention you don't need any of that with the mods you have. WOT, SP and spark is typically used in more advanced applications and not necessary. Spark will definently mess you **** up if you play with that.

 

The tuner can enable different levels of user adjustability in each custom tune depending on the customers needs, etc. You can adjust some of the features to see if there is an improvement you like, and readjust as needed. I would not play with spark.