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5.3 Return Setup and Routing Options

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Old Apr 15, 2013 | 05:06 PM
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Default 5.3 Return Setup and Routing Options

I am looking for a little help with me 5.3.

I have a Carbureted L33 in my 81 caprice that I am in the process of swapping back to fuel injected.

I sourced an intake from a 2001 that has the return style fuel rails with the regulator.

My first question....are these the correct fitings I require to adapt -6 line?
http://www.summitracing.com/parts/rus-640853
http://www.summitracing.com/parts/rus-640863

My second question....I am running a Walbro 255lph pump. Is the oem regulator sufficient? Installed in the car right now, I have the Aeromotive Universal Bypass regulator with the low pressure spring (Regulator part number 13301), however, I have the high pressure spring for EFI applications. If I were to use this regulator....would I have to somehow disable the factory rail mounted unit? Or would I rather use it in conjunction with the oem piece?

I am very confused how to plumb my return regulator into return rails lol.

This is what the engine bay looked like before:



And this is now:

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