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<p style="margin-top:0;margin-bottom:0">In the late 60's, the way Ford used to supply hot air for the choke "stove" was route air from the air cleaner or a carb port, through a pipe in the passenger side exhaust manifold and up to the choke housing. The manifold
had two ports sticking out of it, one for air in, one for air out. I think that's what we're looking at here. In the early 70's or so, Ford moved the pipe to the intake manifold, just under the choke.</p>
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<p style="margin-top:0;margin-bottom:0">Steve</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Tigers <tigers-bounces@autox.team.net> on behalf of awtiger--- via Tigers <tigers@autox.team.net><br>
<b>Sent:</b> Wednesday, October 17, 2018 6:21 AM<br>
<b>To:</b> Joe Brown; Joe Brown via Tigers<br>
<b>Subject:</b> Re: [Tigers] Air Cleaner Question</font>
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<p>Joe:</p>
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<p>No, that is not to be used to connect the vacuum advance line from the distributor. Although I am unclear on its function, I can tell you where it connects. There is a small metal tube that inserts into a hole in the passenger-side exhaust manifold on
the forward-facing side of the #4 exhaust runner. It runs up the side of the engine and over the top of the passenger-side valve cover, terminating just short of the hose fitting that you are referring to on the air cleaner base. A short piece of rubber
hose is then used to connect the tube to the a/c fitting. My guess is that it is used to direct some warm air into the induction system for assistance in quicker morning warm-ups after the initial start, but there are those on the list who are more learned
than I on things like this who I'm sure will chime in with its real function.</p>
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<p>I'm assuming that your car is missing this tube, as was mine before I restored the engine compartment. I was able to get one from one of the classic Mustang/Ford parts suppliers, and then simply bent it to fit by using pics of the cars "back in the day"
as a guide. Let me know if you want a pic and I can get one to you. </p>
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<p>Thanks,</p>
<p>Andy Walker</p>
<p>Edmond, OK</p>
<blockquote type="cite">On October 16, 2018 at 5:15 PM Joe Brown via Tigers <tigers@autox.team.net> wrote:
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<div>On the oval style air cleaner base there are two hose fittings. The larger one goes to the air breather on the driver's side valve cover. What does the small fitting hook up to? Vacuum advance on the distributor?</div>
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<div>Thanks,</div>
<div>Joe Brown</div>
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