Need Tuning Help- Frost, Russ K anybody

[BINNCZ71]

Have a weird situation, feel like I am missing something obvious.

Have a 1999 Silverado ECSB Z-71.. 5.3 Automatic.

Mods: cold air, cat back exhaust, 03 injectors, and polished throttle body.
finish line level 5 tranny.

Truck is falling on its face on take off. Once moving, it picks up pretty well.

Please help.. Pulling out what little hair I have left.

[Pulse_GTO]

Your LTFTs are alittle high, also try tuning your burst knock off and see if that helps out.

[axekick]

if it were mine, I'd go under Power Enrichment and set Delay RPM, Enable Torque and Torque hyst. to zero. Set EQ Ratio vs. RPM to 1.15 across the board and then go to Spark - Advance and under Base AFR Correction, add a few degrees to the low RPM cells in the 1.15 column.

However, its not really safe to make changes to the PE tables without checking tham with a wideband.