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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: dc7432 on August 19, 2014, 06:29:47 PM

Title: 87 fuel lines to TBI
Post by: dc7432 on August 19, 2014, 06:29:47 PM

87 350 TBI and my question is....I have two lines going to the back of the TBI  does it matter which side they go on behind the TBI?  Before I disconnected i took pictures but the pictures were deleted and the lines look like they could go on either side. I can see the lines stacked on the frame then turn to flex then back to SS thanks in advance.

Title: Re: 87 fuel lines to TBI
Post by: bd on August 19, 2014, 07:43:10 PM

The fuel lines are not the same size and will not interchange.  The 3/8" (10 mm) fuel supply line connects to the driver side fuel nut at the back of the TBI body.  The 5/16" (8 mm) return line connects to the passenger side fuel nut.

Title: Re: 87 fuel lines to TBI
Post by: dc7432 on August 21, 2014, 03:59:52 PM

Thanks Rich

Title: Re: 87 fuel lines to TBI
Post by: bd on August 21, 2014, 04:04:38 PM

You're welcome.