I recently purchased a used 2002 with an automatic which is the first automatic I have driven. I own two other trucks an 04 and and 01 both with maunal transmissions. I recently changed the air filter to an AFE setup and added a 4" exhaust. My question or problem about the automatic is that it is sluggish from a standing start and compared to the other trucks it feels like the engine has alot less pull than the manuals. What else can I do to make this truck perform better. I am a die hard cummins guy and respect your information. Thanks Dennis 
