Join Date: Oct 2007
Location: Dayton, Oh and St. Louis, Mo.
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Sounds like the accelerator pump in the carb is bad. They like to harden up over time and stop squirting. I would rebuild the carb with new gaskets and needle and seat. I would also pick up the metal float instead of using the plastic one that will be in the kit. With 3 cans of carb cleaner.
Those stone filters are not the best you can swap out the filter housing with a newer style filter and housing from a carb from the mid to late 70's. That have the paper filters inside. The paper ones will harden up like the acc pump from the ethanol in today's gas, but offer better filtering. I like to run the rebuildable clear filters from autozone inline on the rubber line. So I can see how well the gas is flowing and how dirty the filter is.
My old 350 chevy, I had in my 67 Camaro for a few years, had a very bad accelerator pump, and didn't squirt either. But the engine had enough vacuum to pull the gas from the carb. That is what is happening to yours. When the choke is closed it causes enough vacuum to pull fuel but when it opens up it no long can get gas.
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