Ford 555 TLB

   / Ford 555 TLB #31  
Okay, it's a rotary swash-plate style pump. In that case, the "metering valve" is most likely the culprit. Bugs are highly corrosive and can do a lot of damage to a fuel system.
 
   / Ford 555 TLB #32  
I would get the fuel pump rebuilt from the sounds of it.
 
 
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