03 silverado 4.8 1500 hepertech III setting

i have a 2003 silverado k-1500 ext. 4.8 liter v-8 Z-71 4x4 ,traction assit, with towing package -after market full flow air filter and flowmaster exshaust:evillol: .I just received my Hypertech Programer III .a Bit confused on what setting i should use with on auto. tran can any one help with all are some of these setting. :screwy:

what specific setting do you have a question about? it pretty much comes down to: 1. what octane do you plan to use 2. do you want it to shift more firm, i wouldn't adjust the redline or shift points unless your racing. the rest of the settings(tire size, aftermarket parts) are y/n. Your biggest hp gain will be w/ 93 octane setting-but you'll pay a little more at the pump.