i have a 2004 gmc sierra 4dr. its a v8 350 either 5.3l or 5.7 l engine. i have a KandN intake system installed, and a computer programmer installed and set on performance. i also have 22's rims and 30in tires on it. i really want my truck fast. but with all this on it i dont feel that its got that drag race speed. i want to know what i should do to make it live up to my standards. when im at a stop light and i punch it, it seems like it is taking way to long to get to 60mph. in my buddies truck with no upgrades it seems to be able to burnout from a stop and faster. i dont know if i need to do something to my first gear or what, i just want it to be burning tires by punching it down from a dead stop and just plain old muscle. please help.