Ive read were a few of you go to the 2.5 bar op sys and it has a regular VE table. I havent tuned on any Gen 4s, but trying to learn more before I do. My question is...If I go with the Enhanced MAF tune will it have the regular VE table? If not do you have to use Enhanced speed density and if so does it have to be a specific one? I am going to be tuning on an 07 Avalanche with 5.3, just cam, headers, and portwork. I Would much rather have a regular VE then the VVE, even if it does cost a little more. Also just trying to get the VVE figured out I tried to use the Blue cat software with the 3.5 version and it kept saying to make sure all 6 items were selected and they were, it just wouldnt see them. Has anyone figured that one out yet?