Hello I'm Matthew I just bought an 04 suburban 5.3l and saw the site on a flyer for the upcoming ls1 shootout march 1st that my buddy told me bout. Thought I might check the site out. Friends have a couple Chevy trucks tuned by nelson performance giving me some pointers on mine. I live down the street from nelson so next payday I might swing by there. Anyways thanks for having me.