Hey guys, new to this site. I have a 2003 ch-613 with a 460 and a 13 sd. fuller with 4.11 rears. In the lower gears the engine is extremely sluggish, only when you click into high range, does it start to come alive. I get about 30 lbs. of boost and it pulls ok in the high gears. Is there anyone out here that can tell me where to go ( other than off a high cliff, haha) to maybe get a different ecm, or a reflash or something to maybe wake this thing up in the low gears? Im not looking for any miracles, nor am i unrealistic on what im looking for. I can live with the way the truck pulls on the high side just the way it is, im just trying to wake this thing up a little bit on the low side. Now i know this a common problem, i just dont know where to go to have it tweaked. Thanks for any help!
