Interesting how similar problems occur to similar cars. I had the
exact same symptoms with my 74 BGT. I took the line free from the
carbs and the flow looked fine. But my car would no longer start. I
checked many things, I now know that I need new spark wires from looking
in the dark, but I finally took the carbs apart. Quite surprised I was
to find them bone dry even though gas came from the hose end at a good rate.
The problem was my down stream filter, which also happens to be down stream
from the pressure regulator, which was set at 2lbs. The filter was so full
of rust particles that the combination of the filter and float valves needed
more than 2lbs to open the float valves. I replaced the filter and the car
runs fine.
Since the downstream filter was so clogged with rust I am assuming that I
need a finer upstream filter. This just becomes 1 more thing to do after
the car goes down for some major work in a couple of weeks. I can get to
work just as fast on the bicycle.
Tim
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