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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Feb 2013 Posts: 9 New Guy | | New Guy Joined: Feb 2013 Posts: 9 | Looking for the correct Vacumm Advance Line size for a rochester model B carb. Does 1/16th sound right?
Thanks, ![[Linked Image from i1297.photobucket.com]](http://i1297.photobucket.com/albums/ag37/Mitchfloyd/20170331_112303_zpskuphnznh.jpg) | | | | | Joined: Mar 2014 Posts: 4,509 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,509 | If you mean the metal tubing, I think the od was about 1/8". It depends on the fittings on yours, also. Some were flared and some used the crimp ferrule thing. Feels nice out there today, doesn't it?
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Feb 2013 Posts: 9 New Guy | | New Guy Joined: Feb 2013 Posts: 9 | 1/8th. Thanks. this one had some compression fittings. Yes, finally getting warm here.
Thanks, | | | | | Joined: Feb 2004 Posts: 29,875 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,875 | The original equipment line was 3/16" OD. A 1/8" ine will work, but you'll need to do some adapting. The vacuum advance has a 3/16" inverted flare female fitting.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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