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72 Demon 340 fuel system #2702931
10/02/19 09:48 AM
10/02/19 09:48 AM
Joined: Jul 2015
Posts: 180
Bradford, Ontario
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Barrelhouse Offline OP
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Barrelhouse  Offline OP
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Bradford, Ontario
I have a 72 340 Demon what size fuel lines would it have from the factory ?, 3/8 or 5/16 . Im looking to buy a 521Restoration fuel tank soon.

Re: 72 Demon 340 fuel system [Re: Barrelhouse] #2702943
10/02/19 10:13 AM
10/02/19 10:13 AM
Joined: Feb 2006
Posts: 604
TN
1DGEMAN Offline
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1DGEMAN  Offline
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TN
5/16 Is this going to be a restored car? If not you might consider going 3/8 if a hotter engine or stroker is in your future.


Real Men shift for themselves
Re: 72 Demon 340 fuel system [Re: 1DGEMAN] #2702961
10/02/19 10:36 AM
10/02/19 10:36 AM
Joined: Jan 2003
Posts: 20,481
Eagle, Idaho
Neil Online content
The Doctor is in.
Neil  Online Content
The Doctor is in.

Joined: Jan 2003
Posts: 20,481
Eagle, Idaho
5/16" is stock. You can go bigger, but will need to upgrade the clips etc to the larger line size.

5/16" is fine for most cars, and unless your racing it you really don't need to go larger.

Re: 72 Demon 340 fuel system [Re: Neil] #2703007
10/02/19 12:11 PM
10/02/19 12:11 PM
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Posts: 180
Bradford, Ontario
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Barrelhouse Offline OP
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Bradford, Ontario
Thank you for clearing that up for me 5/16 lines it is.







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