Humpbackshooter":35tj690j said:Thanks Chad for your response. Check that on the tube to the choke. Mine was also a aluminum tube but over the yrs, it had broke off right at the exhaust manifold. So I took a piece 1/4" copper and redid it. As far as the warm air that travels through this tube, its exhaust gases. Correct? That being said....this is air that has traveled in from the carb, ( through the breather ) and when through the atomization process.
I guess what I'm thinking is that......this is air that started off as "filtered air", but becomes dirty as it goes through the combustion process. CZLN6 said that its unfiltered air....True to a point. It is unfiltered air as it travels "back" through the carb again after going through the choke.
Please don't think that I'm trying to stir anything up. Its just a play on words I guess.
Thanks,
Hump
Sorry Hump, that's not entirely correct, the stock Ford exhaust manifold is suppose to have a steel sleeve tube that air is pulled through, then the stock (also steel) heat stove pipe is pressed into it to connect it up to the carb's choke cover. So unfiltered air is drawn from below the exhaust manafold by a controlled vaccum leak up into the choke cover. So now if the exhaust manifold's inter tube is in good condition this is a totally separate system of external or outside air warmed by the heat of the exhaust for the carb's choke. And working as it was designed to you also don't want any exhaust gases to be going into the carb's choke assembly. Good luck Edited