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07-21-2009, 12:15 PM
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#1 |
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Keep On Keepin' On
Join Date: Apr 2006
Location: Oklahoma
Posts: 417
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3-line or 2-line fuel pump...
This may be a dumb question here it goes...I just had a custom gas tank made and I DO NOT have a fuel pump on my small block...How do I know of I need a 3line or 2line? Thanks
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07 Avalanche Z71 92 Mustang 5.0 GT (Triple White w/ 53,000 miles) 72 SWB Chevy w/ PS, AC, 350/350 Current Project ....In paint shop getting body/paint work done (Corvette Velocity Yellow)... http://67-72chevytrucks.com/vboard/s...d.php?t=157669 |
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07-21-2009, 12:52 PM
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#2 |
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Gearhead
Join Date: Jan 2008
Location: Colorado
Posts: 1,193
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Re: 3-line or 2-line fuel pump...
I assume you are referring to the mechanical pump, I believe that the third line was a return line to the tank on some models. I am not 100% sure of that, I would order the pump for the 72' and see what you get... I am betting it is just an inlet and outlet. Others will chime in hopefully.
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2002 Saturn SL2, My D/D 2019 Ford Fusion SE, Ecoboost - Wife's D/D 1993 Camaro Z28, A4, CAI, Cat-Back Exhaust Project C10 (my 72' C10 w/96' LT1, 700R4, bagged F&R, 18's (for now), Short/Fleet) -- SOLD! Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=313644 |
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07-21-2009, 01:01 PM
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#3 |
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Keep On Keepin' On
Join Date: Apr 2006
Location: Oklahoma
Posts: 417
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Re: 3-line or 2-line fuel pump...
It calls for either...
__________________
07 Avalanche Z71 92 Mustang 5.0 GT (Triple White w/ 53,000 miles) 72 SWB Chevy w/ PS, AC, 350/350 Current Project ....In paint shop getting body/paint work done (Corvette Velocity Yellow)... http://67-72chevytrucks.com/vboard/s...d.php?t=157669 |
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07-21-2009, 01:54 PM
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#4 |
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Gearhead
Join Date: Jan 2008
Location: Colorado
Posts: 1,193
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Re: 3-line or 2-line fuel pump...
Well that figures lol Ok well I guess Im no help to you.
 My 72' had all the emissions system (charcoal canister) already unhooked and had been changed from I6 to SBC, so I never had to deal with this. Does on line possibly go to the charcoal canister to pull fumes?? Hopefully a guru will have the answer for you. Sorry I was of no help. 
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2002 Saturn SL2, My D/D 2019 Ford Fusion SE, Ecoboost - Wife's D/D 1993 Camaro Z28, A4, CAI, Cat-Back Exhaust Project C10 (my 72' C10 w/96' LT1, 700R4, bagged F&R, 18's (for now), Short/Fleet) -- SOLD! Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=313644 Last edited by 6772owner; 07-21-2009 at 01:55 PM. Reason: text |
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03-11-2013, 10:11 PM
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#5 |
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Registered User
Join Date: Jul 2010
Location: central michigan
Posts: 1,194
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Re: 3-line or 2-line fuel pump...
Is it necessary to have a return line?
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