Ive replaced the fuel pump, filter, spider injector, distributor cap and rotar, plugs and wires all with ac delco stuff and it still wont start, It was having rough idle having to keep my foot on the gas at red lights etc, then on my way home i had to speed or it was just shuttering then it just died shortly after, it sat for months until i had the money for the spider injector.

I only had enough for a remanufactured one but it came from a reliable source with a one year warranty and looked brand new. After install the truck actually started! It was blowing alot of whitish bluish smoke hard to tell really but i know my old injector was flooding the cylinders since i had gas in my oil.

after a while is stopped smoking and i took it for a spin around town never getting above 25, it drove OK but not great by any means, I figured I had a fouled plug or two, it stalled a few times then never started again.

So I did an oil change to get to get the gas out of the oil, bought a new ac delco distributo cap, plugs and wires just to cover all my bases, printed out a wire diagram installed it all and made sure the plugs were wired properly, turns out they were not before!!! And it still did not start, I am however getting spark and fuel.... Any advice besides going to a shop?

What and where is an ignition switch? I heard this can cause timing issues in chevy engines. thanks guys, also before you tell me to, I do not have the equipment to do a fuel pressure test, you guys love to throw that one out there it seems, its a simple engine if its getting the right spark it should fire with a can of friggin starter fluid in my opinion...

 

also all my vacuum lines are in rough shape, but they have been that way since i bought it so that is not my issue, at least not the issue that is suddenly making it not start.