(title removed by mod)

driving home doin about 75 i had the music a lil loud then i flet like a let of of power, so i pressed the gas a lil and niether the rpms or speed needles would move? so i go to pull over and the car shuts off when i start to slow down? i checked the belts alt timing everything i took my plugs out nothing i cant see anythign wrong here had it towed to my shop the only recent thing done to it was new plugs? could this have somthing to do with it? the alt has been replace 2wice