Hi gang. I have a friend who bought a procharger kit for his 2002 f-250 with 5.4l. The guy who sale the kit for his truck order a sc kit for a f-150. My friend don t know this and install the kit with some modification. He can t go more than +- 5 psi , or the truck will `miss`. The guy don t want say than it s his mistake and my friend can t return the sc kit. Does somebody know how make this kit perfect, maybe it s just programmation issue, but i dont know. Thanks again and sorry for my english... :P