Fuel Line Rerouting

How are you priming the carb?

what is the idle RPM set to?

have you replaced the fuel cap lately?

THOUGHT...

when you had a leak how did you fix it? New hose? maybe some of the old hose scraped off into the fuel line to the carb and is blocking the inlet port? I have seen some carbs that have a small screen in the fuel inlet port ( motorcraft IIRC) perhaps your does too???