so recently i took my truck in to have it serviced. and just have a general check up. new plugs, all fluids blah blah blah. anyhow, i go in to talk to the guy this mornin when i pick it up, he tells me that my timing was off. so i was like yeah i know, well he then sez he fixed it. ok so i get in, think nothing about it, drive to school. ok that truck does not drive like it used to. im not where i can check the timing yet, i have to go get my light from my friend, but im guessing he turned it back down to 10*. so im just wondering......why did it do that. like it didnt really have a hard kick this morning........as where it used to. i did have it set at about 14-15*. im gonna turn it back up once i get my light....i just wanted to know what it acted that way after changing it back to stock. just typical???