Ismalley, I read an article years ago about removing the fuel pump(s) from the vehicle and running it backwards for an instant (powered by a 12 volt battery) with kerosene as the fuel. That effort will clear out any crud that may have accumulated in the pump over the years. May need to repeat the process a few times. It's worth trying to rejuvenate an old fuel pump, rather than buying a new one.

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Fred Hoelzle