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Old 01-09-2014, 11:48 PM   #87
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
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Re: Help with fuel system design for LS1 install

Quote:
Originally Posted by McMud View Post
Hey Guys,

i also ordered a 06 LQ4 to swap it into my 1797 Suburban.
The Seller told me that i have the Rail System with the Return Line, so no Vette Filter.
Should i use filter before or after the 255 Walbro?
Does anybody of you know what size and type of connections a 79 Fuel Tank has?
Does this Fuel Tank have a Connection for a return line?

Greets From Austria :-)
2006 seems awful late to still have a return style fuel rail. Your '79 tank will just have hose pushed on the sender and clamped. If you are planning to run an external fuel pump, it would be in your best interest to use some kind of a pre filter to keep any junk out of the pump. People have run them without a filter, but you are taking a chance, and if it's worth doing, in my opinion I would do it once and be done with it. That said, your even better option would be to get a '87 tank and sender and put a Walbro 255 pump in the tank. That is if an '87 tank will fit a 1797 Suburban. Pretty sure you meant 1979?
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