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might be a crazy question. #1686490 10/16/14 05:24 PM 10/16/14 05:24 PM
Joined: Feb 2008 Posts: 2,648 GA Boosted OP master
Boosted OP master Joined: Feb 2008 Posts: 2,648 GA	I just picked up a 70 Challenger with a 360. Car does not want to run with a non vented gas cap. Take the cap off and it will crank and run fine. I have not tried driving it like this though. Does this make any since? 2011 RAM3500 1967 Fastback Barracuda with some go fast goodies.

Re: might be a crazy question. [Re: Boosted] #1686491 10/16/14 05:28 PM 10/16/14 05:28 PM
Joined: Jan 2003 Posts: 28,067 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,067 Irving, TX	If there is no good vent for the fuel tank it will likely have that problem. The pump can't draw fuel from a vacuum. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: might be a crazy question. [Re: feets] #1686492 10/16/14 07:34 PM 10/16/14 07:34 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Every 1971 car had an evaporative emission system and a non-vented gas tank. Yours is probably plugged or capped off or something. Fix it. R.

Re: might be a crazy question. [Re: dogdays] #1686493 10/16/14 08:41 PM 10/16/14 08:41 PM
Joined: Feb 2008 Posts: 2,648 GA Boosted OP master
Boosted OP master Joined: Feb 2008 Posts: 2,648 GA	Mine is a 70.. No concern here about emissions.. 2011 RAM3500 1967 Fastback Barracuda with some go fast goodies.

Re: might be a crazy question. [Re: Boosted] #1686494 10/16/14 09:18 PM 10/16/14 09:18 PM
Joined: Aug 2013 Posts: 518 Georgia S Steve Bryant mopar
Steve Bryant mopar S Joined: Aug 2013 Posts: 518 Georgia	1970 cars made in the LA Plant also had some of those emission "extras". I did not replace the return fuel line on my 1970 Cuda when I stripped the undercarriage last year and so I "vented" my cap and used a PCV-like valve to let air go into the empty line instead of plugging it. If I had plugged it and not opened the cap I would have been in the same boat.

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