I post this over at LS1tech but got no responce, so I thought I'd ask over here.

https://ls1tech.com/forums/conversio...fuelrails.html

Thanks, Tony

 

the tbss manifold is returnless ! to begin with !

 

Are you sure, I have two line coming off the drivers side fuel rail. One feed & one return I assumed.

Tony

 

Are You sure?

Post a pic of this rail. You should only have a supply liner for that rail.

Yes, though you can use a corvette style reg. to return fuel back to the tank.

 

This is the only picture I have handy but you can see the two lines in the lower right side of the picture over the tire.

 

Hard pic to tell. The TBSS and any truck after 04 is a returnless system.. If your doing your own style fuel system, just set it up for return then if it has return rails on it.. The FPR and all is right there on the rail..

 

Hard to see what your talking about in the pic for me also.

I have the same fuel rail you have and it only has a supply line on it.

You will need to like said get a corvette style filter that has a provision for a return line back to the tank.

OR get an after market regulator ( thats what i use) . It will have a supply inlet and return line to go to tank.

OR Get aftermarket fuel rails with a a supply and return provision on them.

 

try to take a better pic if the actual fuel rail , if for whatever reason it has a feed and return i have a nnbs returnless fuel rail that i will be more then happy to trade with you !

 

Thanks guys, when I get to work tomorrow I'll get better pictures at the drivers side fuel rail and hopefully that will clear thing up a bit.

 

Ok I got a few better pictures and it looks like it may not be a return fuel line after all. Can someone tell me what it is/function and why it does have a fuel type line attached to it and a sealed type connection hose to the Intake.

Thanks again, Tony