i have a 2003 gmc ecsb 5.3L, 3.73. my mods are- intake, cat back, t/b spacer, and programer. and getting headers. if i got a 3000 stall yank Torque converter. would i have enough power actually stall at 3000rpms. how much of a difference will it make? and if u have a 3000 stall and your driving 70 mph, i would be at about 2100rpm. is that hard on the converter because it wouldnt be locked up?