jaywill

iTrader: (5)

Guys do I need to run a return line or I can use the truck intake without the return line like it is on a 5.3 turbo build.???

Shaggykjb

I know the pre 2004 5.3l were return style. Then after they offered flexfuel they went to a returnless style.

I could be wrong, but I believe if you live in an area that doesn't see alot of heat running a returnless setup should be fine.

If your car has the lines ran and you have a choice. do the return style to avoid fuel vapor lock from the heat soak.

If heat isn't a factor where you are. Just block off the return on your tank and run returnless.

3 window

iTrader: (1)

I have a returnless fuel rail on my intake. I flipped it around so the inlet was facing forward. This will keep the regulator off the firewall and tech legal. Then I just used a boost referenced return style regulator. Hope this helps.



The inlet is on the right as you're looking at it and the return goes out the bottom.

jaywill

iTrader: (5)

i got it thanks a lot !

Shaggykjb

This is from MSD.