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external fuel pump
im going to order a external fuel pump and regulator what kind of fuel pump should i use
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no info to work with - whos pump - carb injection - HP of motor all play a roll in what is the deal on what to buy - jz
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a Holley blue pump is all you need and the small adj regulator rule of thumb is one pound of fuel pressure per 100 horsepower - but having said that set it around 5 it will work just fine and in no way over pressure the carb float valves they will work up to 9 PSI -- jz
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Why not use the stock in-tank pump & a psi regulator?
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the stock pump is shot
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Like stated above, the Holley Blue w/reg is a nice unit. Wire it up with a relay.
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We posted diagrams on how to wire a FP not too long ago, search for it. Yes, you could add a switch, you would do so on the relay trigger side. GM has already put a lot of the wiring in place for you.
Did you change the sending unit in the tank? I wouldn't think you could just add an external pump and leave the dead pump in the tank. |
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I'm a little confused, did the vehicle have an electric pump or a mechanical pump originally? If it had an electric (I'm guessing yes since you said it was a TBI) you need to get it out of the tank anyway so I would just put in a new intank pump that can handle the motor you are planning and tone it down with an adjustable FPR and save yourself alot of aggravation, time, and money.
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