installed new 90mm ford motersports maf senser(still got gms maf trying to sell) put in new 24# ford racing injectors(replacing stock 19# injectors) put in new denso iridium plugs (pain in the as* to change those plugs) changed out feul filter and oil(mobile 1 10-30) and installed 9100 custom tuner from troyer performance, the truck runs awsome idles like glass, throttle responce is emproved and i need less throttle to get to the same speed i definatly gained some power with the 91 oct max tune, will probably hit the dyno in jan. to post HP # thanks troyer for the parts