I am looking at putting on aftermarket headers on my I6 since my exhaust manifold has a crack in it. Question is that the stock exhaust manifold has an inlet for the choke but the header doesn't look like it has an inlet for a choke, what do I do?

 

I used Clifford Headers and had the same problem. Pony Carburetors has a extended length choke tube. I got one of them flattened the end and attached it to a header tube with a sliver hose clamp.

If you look hard you can see it but it looks fine to me.

 

You got a picture to show? Thanks for the information. I am just looking to get a better sound and hopefully a little more HP out of her.