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i have a 85 s10 blazer 4X4 with a chevy 350 with a 600 cfm holley carb and it has a bad fuel problem. after i drive it for about 1 hour it seems like the fuel is draining back into the fuel pump or something. it runs ruff but ussually stays running. when i look at the fuel filter i cant see any gas going through it and there is just a small amount of gas in the lower right part of the filter. after i rev it up a bit then the pump starts letting some fuel in but not much. i put a brand new mechanical fuel pump on with new rubber line but that didnt help so i dropped the tank, everything looks fine in the tank. the looks almost brand new. i thought maybe i had a fuel leak but i couldnt find one.

anyone have any idea about what could be wrong?
 

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Say lowered d
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1,349 Posts
whats the strainer

look like on the inlet tube in the tank? It might be plugged.
 
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