Hey guys! I have a 2002 gmc sierra 1500 Denali with the 6.0, cruising down the highway with the cruise set on 70 rpms at 1800 (4.10 rear end) i noticed on my scanner that my timing advance is staying at 50 degrees +- 1 or 2, is it just me that thinks thats too high for a stock truck? Saw on some forums people say dont go higher than 30 ish at wot? The truck is horribly slow and i read a bad MAF could cause high timing and poor performance? Thanks in advance!