CASO,
Your close! The real problem from the get go was the fuel pump. I don't know how old it was, but it was shot! The diaphram was plain worn out. Sometimes you can tell from the outside if it looks like its leaking. In my case there were no tags attached to show anyone it's age. You would think that it would be date stamped. So, I thought I could try and take it apart and "monkey" with it to get it to perform better, but that turned out to be a waste of time. Just buy a new one!! I paid $44.00 for one at NAPA.
The blockage was my creation. As I said before, when I went to try and check fuel pump pressure on the "old" pump I inserted a tapered nozzle like probe into the gas line just ahead of the fuel filter which was just ahead of the carb. The gasoline attacked the plastic and degraded the fitting. Lesson learned, don't stick plastic probes into gasoline!! Some plastics can handle gasoline and some can't. I should have had a hose connection on the "outside" of the gas line to check the pressure. Oh, and BTW, this engine analysis kit I have is from the '70's. A good friend of mind gave it to me one day when he found out I had aquired and old truck. So that little plastic probe in that old kit just wasn't compatible to be exposed to gasoline.
Anyway, I would suggest everyone check their fuel pump and if it isn't delivering the correct fuel rate, get a new one right off the bat!! End the drama and frustration!
