need thoughts on log 2008 sierra 5.3

[xtremesilvy]

hi guys just got done doing a longtube install on buddys 2008 sierra 4x4 1500 5.3 ,i did a maf tune got it +-2 STFT so reenabled all factors, so i got him to do a WOT pull to see how it looks and it had this -11* timing dip between shifts i thought i had all TQ mang disabled for spark and all limiting factors,i have changed trans settings as well any help would be great thanks everyone the WOT pull at 3:09/20min but the timing dip is consistent on shifts, they feel firm but the timing is of concern as to where im missing to turn it offnewest maf tune LTs all reenabled trans mod reference last tune.hptkevs new tune lt one wot pull.hplMAF vs STFT.hst

[CatnipG5Bandit]

Is this the modded tune? I see final minimum spark (Engine>Spark>Spark Limiters>Spark Minimum) has very negative values, as low as -25*. Also, under transmission torque reduction there is up to a 40% reduction in torque during shifts. (Trans>Torque Management>Torque Reduction). Abuse mode under trans torque management is also active. Could be these.

I see you are tuning the 4L60e. I can't confirm but I hear they are weak. If it isn't adversely affecting the truck and the guy isn't complaining I'd leave it alone.

[TexasGMC08]

What are the adjustment procedures on this table?