ByByeAmericanPie

1961 283 2x4 245

What is this little opening on the bottom side of the exhaust manifold?

Vet65te

You probably have a choke hot air tube on the top side of that opening. There's a tube inside the exhaust manifold and air is drawn up through it, getting heated along the way and then passing into the carb with the choke.
Mike T - Prescott AZ

66jack

This is what should be in there...

http://www.parts123.com/corvettecent...50b&ukey=16944

ByByeAmericanPie

Ahhh..that makes sense. There is a hot air tube on top of the manifold. Thanks!