2007 silverado stalling

[[email protected]]

im new to this hp tuners, have a 2007 chevy truck , i boungt it like this and know no specs, any help would be appreciated , it has a cam, headers,3inch exhaust,cold air, 3000 stall, my issue is that if i stab the gas at idle it stalls and while drivivg stoping fast it stalls, it almost catches itself and it dose somtimes but most times it stalls, if someone knows about this can you look at tune it has now and possibly make the adjusmets needed? thanks, tune is called race truck that?s just what my son calls truck it a daily street truck

[Tuffy282000]

4.8?

[Tuffy282000]

i see several issues. idle airflow, 21lb injectors. virtual VE table, way to much timing and a few other issues that need some attention. i cant make changes because i dont have a license for your tune. i suggest finding your local tuner.
,

[[email protected]]

It?s supposed to be a 5.3 799 heads

[kevin87turbot]

It?s supposed to be a 5.3

Like Tuffy indicated, it's tuned for a 4.8L engine. It does have too much timing at WOT. Typically 26 degrees is close to max for a truck with 93 octane gas. Yours has 30 degrees.
You injectors are the factory 29.4 lb/hr injector, so they will be fine. You can likely fix the idle issue by add another 1-2 gms/sec to the Min Airflow table. I would also address the timing tables and would recommend disabling Desoot Mode as well.

[[email protected]]

12576178 799 heads This is the block casting number, what did you look at to see it was tuned for 4.8, I know the computer is from the stock truck no when I link to it it says 4.8 but hope it?s a 5.3. Also what tab is gms and desoot mode under, thanks for any help

[blindsquirrel]

Stock bore 5.3 is 665.92 per cylinder, not 600.79.

screenshot.16-05-2022 20.38.37.png

Edit > Navigator (or hit CTRL+N). Type in likely keywords. 'Desoot'. (or the ID number, if that's all you know)

screenshot.16-05-2022 20.43.18.png