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Old 06-29-2012, 10:55 AM   #23
JNJchev77
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Join Date: Mar 2010
Location: Mesa, AZ
Posts: 918
Re: Help with fuel system design for LS1 install

Quote:
Originally Posted by MAK191 View Post
What year is your engine? Sounds like you have the return style fuel rail. This style has the fuel regulator built into the fuel rail. The corvette regulator is not needed for this style. The two lines from the rail just go straight back. One to the pump (either internal or external) and the other line is the return that goes to the tank.
It's a 5.3 out of an 03 Tahoe. Has two lines right off of the intake.

So no need for a regulator? I don't remember seeing any kind of regulator in the system?? What should the rails looks like?

That would be good news, could be why I'm confused about this fuel system layout lol
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77' Chevy SB
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5.3/4l60e combo
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