Lmm 2009 GMC Sierra 2500 hd HELP tuning please

[Tommy ashley]

Imma go short and sweet if u want me tell ya more ask but,,,

I wanna understand the tuning more so then building them,, I

[GMPX]

All your posts so far are very hard to read and comprehend, on a forum it helps to use full words and sentences. You'll get more help if people don't give up reading within 10 seconds trying to understand what you are saying.