2004 ford lightning stock what mods should I start with

[Mainegsxr]

Just looking for an little more horsepower and an good tuner truck is completely stock just lowered it 3in in the back with JLP shackles now looking for some power just let me know what to do has 68,000 miles will post pic tomorrow weather is bad

 

[garbonzo1991gt]

Pulley and tune is a good power upgrade. The tuner should be what ever your local shop who's doing the tuning recommends.

 

[Mainegsxr]

Ok what's the biggest pulley I can go with and be safe

 

[Zemedici]

Do a lower crank pulley.

Appears stock under the hood, but is far from it ;-)

 

[Blainer]

Do a 4+ and get lower heat range plugs... and tune

Did you "read the Read here first" under second gen Lightnings? Good info there!