Took my truck to the local track this weekend to make a few runs. the moment the truck hits 3rd gear it flat out quits pulling. Has a helacious rattle coming from under the hood too. Idk if its in the tune or if i have something wrong. Ive got a 4lb lower, lfp TB, c&l s/c plenum, jlp filter box, c&l intake elbow. im running NGK TR6 plugs. I just got my starter tune from JJ because the one that came in the kit from LFP was a joke. just wondering if n e one else has had problems like this or if the tune just needs to be revised.