Pontiac - Street No question too basic here!

          
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Old 04-20-2013, 09:33 PM
Tinindian6702's Avatar
Tinindian6702 Tinindian6702 is offline
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Default Fuel Pump Help needed

Hi,
I am working on my 78 Firebird. It originally had a 305 factory engine. I recently replaced it with a SBC ZZ4 GM Performance crate engine. The original set up which I replaced with St/St lines had a fuel and return on the passenger side and a vent line on the drivers side. The engine came with a fuel pump with just one inlet from tank and outlet to carb. I am having trouble finding a pump that has a return. Do I need it? The new sender has a return on it. Please let me have your suggestions. Thanks, Mike

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  #2  
Old 04-21-2013, 10:46 AM
Chris-Austria Chris-Austria is offline
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Default

You might need it if you run into vapor lock issues. You can use a bypass regulator if there is no pump with a build in return line.
At the moment I run my engine without return and no problems so far.

  #3  
Old 04-21-2013, 12:08 PM
72LuxuryLeMansLa.'s Avatar
72LuxuryLeMansLa. 72LuxuryLeMansLa. is offline
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Default

Try posting in the forum for "Non Pontiac Motors in Pontiacs" , I'm sure someone in that forum has experience with this situation.

http://forums.maxperformanceinc.com/...play.php?f=423

Karl


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