My friend has a 1990 Chevrolet C-3500 with a 5.7ltr. He was having trouble so he put in a new Distributer and a new fuel pump and filters It was running good he used it to go Camping Fathers Day weekend and had no trouble. He took it to work today and it ran great until he got ready to head home. It wouldn't start he has spark and is getting fuel to the back of the throttle body. But it still won't start help!