His times do seem very slow for the mods. However, what constitutes a Ford Power Pack, 90mm CAI and 3.73 gears? Also, what size are his wheels? Ideally, with 17 inch wheels, a 90mm CAI and 3.73 gears, he should be able to turn 13.4-13.5 1/4 mile times in a 2006 GT automatic. But 68F and humid...