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I have a 89 4.2 carbed my manual fuel pump is out and i was wondering if anyone has switched to a electric pump and what pressure to set it at?
I have done many of them...I always get one in the 4-7 lb range..any more than that will push past the fuel bowl needle..mount it toward the rear because they are designed to push fuel rather than pull it.mount it so that the inlet/outlet ports are just lower than the bottom of the tank and also lower than the carb.they sell some very cheap ones but I go ahead and buy a better one and have yet to have one fail
 
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