If both carb bowls are clean - I'm assuming HS carbs since you didn't
say - then any clog is probably in the fuel line before the filter, the
pump, the line to the pump or in the tank. Also, the charcoal cannister
or the return line from it to the tank might be partly clogged. Lots of
possibilities. Hmmm, isn't there supposed to be a filter between the
tank and the pump? If so, check it out. But look, are you sure the
ignition system is OK and the electrical connections to the pump are
clean and tight? How about the pump ground?
Tab Julius wrote:
> My '78B has twin SU carbs; I've been having intermittent (but always at
> inconvenient times) power problems; it more often than not happens on
> the highway when it's being given some gas. It falters, and slows, and
> will go like that for a few minutes, then will magically recover and be
> fine again. It seems to be a fuel delivery problem.
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