I need the nylon cam between the automatic choke and the carburetor body on
an Autolite 4100 double pumper (C4AF-R).  It keeps "fast idle" engaged until
the spring in the automatic choke elongates enough to push it onto "slow
idle".  The nylon cam is tapped for an adjustment screw in it for setting
the fast idle.  Does anyone have one or know where I can get one cheap?

I've been surfing the web, and it looks like Pony Carburetors may have what
I want.  A new one is about $10.  Does anyone have any feedback on them,
good or bad?

Thanks!