73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => LS Swaps => Topic started by: LSXCHEVY on December 12, 2014, 02:28:29 PM

Title: LS swap fuel line questions
Post by: LSXCHEVY on December 12, 2014, 02:28:29 PM
removing old 350... freshly rebuilt all iron 2000 LQ4...bearings, turned crank, rings, cam bearings, cam, etc...as of now cleaning engine bay...any thoughts on what to do with the return line to the tank from the old charcoal unit?

Title: Re: LS swap fuel line questions
Post by: Captkaos on December 12, 2014, 05:11:57 PM
Are you running a return or returnless system on the LS motor?  2000 is return system.  The canister stuff is useless.
Title: Re: LS swap fuel line questions
Post by: LSXCHEVY on December 13, 2014, 09:25:43 PM
return less....running a carb...cant i just plug the line for later, in case i convert to FI?
Title: Re: LS swap fuel line questions
Post by: Captkaos on December 14, 2014, 08:34:29 AM
How are you planning to get fuel to the carb?  If you are using an electric pump (which you have to) you will need a way to return the excess from the regulator.

Chris Lucas
73-87chevytrucks.com
squarebody.biz

Title: Re: LS swap fuel line questions
Post by: LSXCHEVY on December 14, 2014, 06:25:29 PM
tank...filter..holley blue pump...regulator...7psi...i have had this same fuel system on my old 350, should i have ran i return line from the regulator?
Title: Re: LS swap fuel line questions
Post by: Captkaos on December 14, 2014, 08:34:51 PM
I generally run a return as it doesn't deadhead.  It keeps circulating the fuel keeping it cooler and should make it last longer.