I have had good luck with my Sniper, I used it on my old F150 and my friends Mach 1. 4.10 gears/cold air/x-pipe/catback/Sniper tune 12.88@109 in o-k weather. Either one will work fine. Is it auto or 5spd? When you get into more mods there are alot more SCT dealer doing custom tunes, thats the...