i am stuck and dnt know what to do. i have a 4.8 motor for starters and want to make it quick without doing anythin major like turbo to superchargers and i dnt want to do a motor swap. what are some pretty cheap ways to get the most out of my little 4.8. oh yeah its in a 03 regency sport side truck. i already have cold air. bully dog. e fans and exhaust