First off, I'm new here so take it easy on me. lol

Lemme give a little bit of whats going on and what my setup is.

I have a 2004 6.0L (bored .030 over) LQ4 with LS2 intake and injectors (12569113 to be exact)
I also have Total Engine Airflow's Stage 1 317 heads with comp-cams (54-416-11) 220/224 camshaft.
90mm Throttle body and cast iron Hooker manifolds.

My goal right now is just get a daily driving tune, I'm not looking for max power at the moment, I want to give the engine time to break-in and work out any little issues before I take it to a proper dyno. I did have a tuner do a base tune on my PCM to get started but it looks like it needs more work. From what I've researched and understand from my logging my LTFT's are waaaay off and I believe I'm running lean.

Again, I just need a little understanding what I'm seeing on my log and whats in the tune so I may do the necessary changes to make it run a little better. The engine does seem to stumble at light throttle before going into closed loop and then she runs a little better.


Howell - 2nd Tune.hpt
drive back from shop.hpl