Replacement fuel pump with or without return line?
Thread Starter
Drifting
Joined: Jul 2008
Posts: 1,483
Likes: 459
From: Lititz PA
Replacement fuel pump with or without return line?
While installing a new cam, I thought it would be best to replace the fuel pump while everything is open and easy to get to. The old pump came out easily. My questions here are:
What pump should I buy and do I need one with a return line fitting?
Do I need a pressure regulator?
My setup is a '73 454 with a 750 Holley and a 230/235 cam.
Thanks a lot,
John
What pump should I buy and do I need one with a return line fitting?
Do I need a pressure regulator?
My setup is a '73 454 with a 750 Holley and a 230/235 cam.
Thanks a lot,
John
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Joined: Jun 2000
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From: Southbound
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Thread Starter
Drifting
Joined: Jul 2008
Posts: 1,483
Likes: 459
From: Lititz PA
Mike,
Yes, the fuel pump has a return line fitting. It connects to a slightly smaller line that goes back to the tank. Should I get a new pump from the local Auto Zone, or buy one from Zip? Is there any advantage with a Holley pump that does not have a return line feature?
Yes, the fuel pump has a return line fitting. It connects to a slightly smaller line that goes back to the tank. Should I get a new pump from the local Auto Zone, or buy one from Zip? Is there any advantage with a Holley pump that does not have a return line feature?
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Thread Starter
Drifting
Joined: Jul 2008
Posts: 1,483
Likes: 459
From: Lititz PA
When I installed a new fuel tank, I had my son hold the fuel lines hoses in a pot so I wouldn't get gas all over the garage. Instead, the air blew out the gas so fast that it hit the pot and then went all over my son's face 
It was funny for me but not so much for him. Especially since he doesn't really like working on cars. He just helps me sometimes because he's a good kid.
The moral of this story is; put a rag over the end of the fuel line your blowing out.
John
It was funny for me but not so much for him. Especially since he doesn't really like working on cars. He just helps me sometimes because he's a good kid.The moral of this story is; put a rag over the end of the fuel line your blowing out.
John
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Joined: Jul 2012
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If you don't plan on pushing more power down the road (who does that?) then the stock is fine, if you're like the speed junkie rest of us, an upgraded mechanical and a regulator at the carb (used just for the return line) will feed it for a long time down the road. As with everything, it all depends on what your future plans are.
Thread Starter
Drifting
Joined: Jul 2008
Posts: 1,483
Likes: 459
From: Lititz PA
2Quickrides,
I don't understand what you mean by the "regulator at the carb (used just for the return line).
Does this regulator you speak of have a discharge port that dumps fuel to maintain steady pressure? And therefore, I would plumb it to the return line?
Please clarify,
John
I don't understand what you mean by the "regulator at the carb (used just for the return line).
Does this regulator you speak of have a discharge port that dumps fuel to maintain steady pressure? And therefore, I would plumb it to the return line?
Please clarify,
John
Advanced
Joined: Jul 2012
Posts: 65
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2Quickrides,
I don't understand what you mean by the "regulator at the carb (used just for the return line).
Does this regulator you speak of have a discharge port that dumps fuel to maintain steady pressure? And therefore, I would plumb it to the return line?
Please clarify,
John
I don't understand what you mean by the "regulator at the carb (used just for the return line).
Does this regulator you speak of have a discharge port that dumps fuel to maintain steady pressure? And therefore, I would plumb it to the return line?
Please clarify,
John
Yup.
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Joined: Nov 2002
Posts: 12,142
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From: Taylor Michigan
. .keep it simple and stock....no need for fancy parts...available at every parts house locally and you might just make a friend at the local place...face to face communication is worth a bunch as a Internet connection can be trouble some and expensive.........