Well, i got this truck from a buddy who said the head gasket was gone. I heard it run before i pulled it apart, and purred like a kitten even with gasket blown. I pulled it apart, milled the head and changed what gaskets needed, and now it fires up for a few seconds and thats all i get? I have cheched and recheched the timing, and its good, but i cant hear the fuel pump going??? Any help would be great!